Abstract: Provided is a photochromic indolenapthtopyran having the core skeletal structure of Formula (I): wherein R1 and R2 are each independently substituted or unsubstituted alkyloxy, substituted or unsubstituted aryloxy, substituted or unsubstituted alkylthio, substituted or unsubstituted arylthio, substituted or unsubstituted ether, substituted or unsubstituted thioether, amino, a nitrogen-containing heterocycle, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, —NHC(O)Ra, or —OC(O)Ra, wherein Ra is substituted or unsubstituted alkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, substituted or unsubstituted alkoxy, substituted or unsubstituted aryloxy, substituted or unsubstituted alkylthio, or substituted or unsubstituted arylthio; R4 is selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted heterocycloalkyl, allyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl; and B and B? are each independently

Abstract: Described herein are compounds generally comprising an indeno[2?,3?:3,4]naptho[1,2-b]pyran structure. Such compounds may be useful for their photochromic properties, and be used in certain photochromic compositions. Such compositions may further comprise other photochromic compositions and/or materials. Additionally, such compounds and/or compositions may be suitable for preparing certain photochromic articles. Also described herein are methods for preparing certain photochromic compounds, compositions, and articles.

Abstract: The present invention relates to photochromic materials that include one or more indeno-fused naphthopyrans that have particular groups at the 7, 11, and 13 positions thereof, and at the position alpha to the oxygen of the pyran ring thereof. With some embodiments, hydrogen or an alkoxy group is bonded to the 7 position, an optionally substituted phenyl is bonded to the 11 position, two alkyl groups are bonded to the 13 position, and two optionally substituted phenyl groups are bonded to the position alpha to the oxygen of the pyran ring of the indeno-fused naphthopyran compound. The 13 position of the indeno-fused naphthopyrans is free of ether groups in which an ether oxygen is bonded to the 13 position, and hydroxyl. The present invention also relates to photochromic articles and compositions that include such indeno-fused naphthopyrans.

Abstract: Various photochromic materials are provided that are essentially free of polymerizable unsaturated groups, and comprise: a) an indeno[2?,3?:3,4]naphtho[1,2-b]pyran; and b) an electron-withdrawing, non-conjugating group bonded at the 11-position of the indeno[2?,3?:3,4]naphtho[1,2-b]pyran. Alternative embodiments include various substituents at other positions of the indeno[2?,3?:3,4]naphtho[1,2-b]pyran.

Abstract: The present invention provides a sterol derivative or a pharmaceutically acceptable salt thereof having an activity to promote proliferation of neural stem cells. Namely, the present invention provides a sterol derivative represented by the general formula (I) (wherein Y represents optionally substituted lower alkyl or the like; Xa and Xb are the same or different, and represent a bond or the like; R1, R2, R3, R4, R7 and R8 are the same or different, and represent a hydrogen atom or the like; R5 and R6 are the same or different, and represent a hydrogen atom or the like; R9 represents a hydrogen atom or the like; R10 and R11 together represent a bond or the like; and R12 represents a hydrogen atom or the like) or a pharmaceutically acceptable salt thereof.

Abstract: A novel photochromic compound which develops a color of a neutral tint (double peak characteristic) and has high color optical density, high fading speed and excellent durability. Like a compound represented by the following formula (20), the photochromic compound having a group (methylthio group in the following formula 20) which has a sulfur atom bonded to the 7-position carbon atom is a photochromic compound having high color optical density, high fading speed and excellent durability.

Abstract: A chromene compound which has a sulfur-containing substituent represented by the following formula (2) at the 6-position and/or 7-position carbon atom of an indeno(2,1-f)naphtho(1,2-b)pyran structure and is excellent in photochromic properties and stability at a high temperature. In the formula (2), ring X is an aromatic hydrocarbon ring or aromatic heterocyclic ring, R3 and R4 are each independently an alkyl group, haloalkyl group, cycloalkyl group, alkoxy group, amino group, heterocyclic group containing a ring member nitrogen atom and bonded to the ring X bonded thereto via the nitrogen atom, halogen atom, aryloxy group or aryl group, and “a” is an integer of 0 to 4.

Abstract: The TPU of this invention contains unsaturation in its polymeric backbone. The unsaturation can be present in the soft segment or in the hard segment or in both the soft and hard segments of the TPU. The TPU can be molded like a thermoplastic, and can be subsequently crosslinked by exposure to electron beam irradiation into thermoset articles having excellent chemical resistance, dimensional stability, set properties, heat resistance, oxidative resistance, and creep resistance. In one embodiment, the TPUs of this invention are the reaction product (1) a hydroxyl terminated intermediate, (2) a polyisocyanate, (3) a saturated glycol chain extender, and (4) a glycol chain extender containing carbon-carbon double bonds, such as the allyl moieties present in trimethylolpropane monoallyl ether.

Abstract: Gambogenic acid derivatives having a structure shown as Formula (I) or (II), salts, preparation method and application thereof in the treatment of tumor. Compared with gambogenic acid, the gambogenic acid derivatives exhibit more potent anti-tumor activities.

Abstract: The present invention relates to naphthopyran compounds that include at least one compound represented by the following Formulas (I), (II), and (III): With reference to Formulas (I), (II), and (III), there is the proviso that: (i) at least one R1 is a group L; and/or (ii) B and/or B? is substituted with at least one group L. The group L can be described as a lengthening group. The present invention also relates to photochromic-dichroic naphthopyran compounds and photochromic-dichroic articles containing such compounds.

Abstract: A chromene compound which has a sulfur-containing substituent represented by the following formula (2) at the 6-position and/or 7-position carbon atom of an indeno (2,1-f)naphtho(1,2-b)pyran structure and is excellent in photochromic properties and stability at a high temperature. (In the above formula, ring X is an aromatic hydrocarbon ring or aromatic heterocyclic ring, R3 and R4 are each independently an alkyl group, haloalkyl group, cycloalkyl group, alkoxy group, amino group, heterocyclic group containing a ring member nitrogen atom and bonded to the ring X bonded thereto via the nitrogen atom, halogen atom, aryloxy group or aryl group, and “a” is an integer of 0 to 4.

Abstract: The present invention provides ophthalmic devices comprising at least one photochromic material which is an indeno-fused naphthopyran having a pi-conjugation extending group bonded to the 11-position of the indeno-fused naphthopyran, the pi-conjugation extending group having at least one pendent halo-substituted group bonded thereto. The pi-conjugation extending group extends the pi-conjugation system of said indeno-fused naphthopyran. The 13-position of the indeno-fused naphthopyran is substantially free of spiro-substituents. The invention further provides photochromic materials of specified structure, photochromic compositions, photochromic articles and optical elements that include the photochromic materials. Other non-limiting embodiments relate to methods of making the ophthalmic devices comprising photochromic materials.

Abstract: A novel photochromic compound which develops a color of a neutral tint and has high color optical density, high fading speed and excellent durability. The present invention is a chromene compound having an indeno(2,1-f)naphtho(1,2-b)pyran structure as the basic skeleton in which a hetero ring having two hetero atoms including at least one sulfur atom is directly bonded to the 6-position and the 7-position of the indeno(2,1-f)naphtho(1,2-b)pyran structure via the hetero atom like the compound represented by the following formula (18).

Abstract: The present invention relates to compounds represented by the following Formula (II), Ring-A of Formula II can be, for example, an aryl group, and Q? and Q?? can each be independently selected from groups, such as, halogen, —OH, —CN, amine groups, amide groups, carboxylic acid ester groups, carboxylic acid groups, alkenyl groups, alkynyl groups, carbonate groups, sulfide groups, and sulfonic acid ester groups. The present invention also relates to photochromic compositions and photochromic articles that include one or more photochromic compounds such as represented by Formula II.

Abstract: Various photochromic materials are provided that are essentially free of polymerizable unsaturated groups, and comprise: a) an indeno[2?,3?:3,4]naphtho[1,2-b]pyran; and b) an electron-withdrawing, non-conjugating group bonded at the 11-position of the indeno[2?,3?:3,4]naphtho[1,2-b]pyran. Alternative embodiments include various substituents at other positions of the indeno[2?,3?:3,4]naphtho[1,2-b]pyran. Also provided are photochromic articles including a substrate and one of the above photochromic materials, in contact with at least a portion of the substrate.

Abstract: Various photochromic materials are provided that are essentially free of polymerizable unsaturated groups, and comprise: a) an indeno[2?,3?:3,4]naphtho[1,2-b]pyran; and b) an electron-withdrawing, non-conjugating group bonded at the 11-position of the indeno[2?,3?:3,4]naphtho[1,2-b]pyran. Alternative embodiments include various substituents at other positions of the indeno[2?,3?:3,4]naphtho[1,2-b]pyran.

Abstract: The present invention provides ophthalmic devices comprising at least one photochromic material which is an indeno-fused naphthopyran having a pi-conjugation extending group bonded to the 11-position of the indeno-fused naphthopyran, the pi-conjugation extending group having at least one pendent halo-substituted group bonded thereto. The pi-conjugation extending group extends the pi-conjugation system of said indeno-fused naphthopyran. The 13-position of the indeno-fused naphthopyran is substantially free of spiro-substituents. The invention further provides photochromic materials of specified structure, photochromic compositions, photochromic articles and optical elements that include the photochromic materials. Other non-limiting embodiments relate to methods of making the ophthalmic devices comprising photochromic materials.

Abstract: The chromene compound is represented by the following formula (I), wherein R3 at the 11-position is a sulfur-containing substituent selected from the group consisting of thiol group, alkylthio group, alkoxyalkylthio group, haloalkylthio group, cycloalkylthio group, arylthio group, heteroarylthio group, sulfonyl group and sulfinyl group, R1 and R2 at the 6-position and the 7-position are a combination of an aryl group or a heteroaryl group and an electron donating group having a Hammett constant ?p of ?0.1 or less, or R1 and/or R2 is sulfur-containing substituent selected from thiol group, alkylthio group, alkoxyalkylthio group, haloalkylthio group, cycloalkylthio group, arylthio group and heteroarylthio group.

Abstract: The present invention relates to compounds represented by the following Formulas (I) and (II), Ring-A of Formulas I and II can be, for example, an aryl group, and Q? and Q?? can each be independently selected from groups, such as, halogen, —OH, —CN, amine groups, amide groups, carboxylic acid ester groups, carboxylic acid groups, alkenyl groups, alkynyl groups, carbonate groups, sulfide groups, and sulfonic acid ester groups. The present invention also relates to photochromic compositions and photochromic articles that include one or more photochromic compounds, such as represented by Formula II.

Abstract: A photochromic chromene compound having an indeno(2,1-f)naphtho(1,2-b)pyran structure as its basic skeleton, an aryl group or a heteroaryl group at the 6-position carbon atom of the structure and an electron donor group having a Hammett constant ?p of not more than ?0.1 at the 7-position carbon atom.

Abstract: A photochromic polymer comprising at least two photochromic moieties linked by a straight or branched chain polymer selected from the group consisting of poly(C2 to C4 alkylene oxide), poly[C1 to C10 alkoxy substituted (C2 to C4 alkylene oxide)] and poly[C1 to C-15 acyloxy substituted (C2 to C4 alkylene oxide)].

Abstract: Disclosed herein are compounds of Formula (I) and pharmaceutically acceptable salts thereof, wherein each of the substituents is given the definition as set forth in the specification and claims. Also disclosed are pharmaceutical compositions containing the compound of Formula (I) and use of the compound in the treatment of neurodegenerative diseases or conditions such as Alzheimer's disease.

Abstract: The present invention relates to photochromic materials that include certain indeno-fused naphthopyrans. The indeno-fused naphthopyrans have an amino group (e.g., a piperidino or morpholino group) bonded to the 6-position and hydrogen or a halo group (e.g., fluoro) bonded to the 11-position thereof. The photochromic materials of the present invention can have a closed-form electromagnetic radiation absorption spectrum that is shifted to longer wavelengths (e.g., wavelengths of greater than 390 nm), relative to comparable photochromic materials. The present invention also relates to optical elements, such as eyeglasses, that include the photochromic materials of the present invention.

Abstract: The present invention relates to compounds represented by the following Formula I, Ring-A of the Formula I can be, for example an aryl group, and L1 is a chiral or achiral lengthening group. The compound represented by Formula I can be a photochromic compound. The present invention also relates to photochromic compositions and photochromic articles that include one or more photochromic compounds, such as represented by Formula I.

Abstract: The invention provides tricyclic compounds and their use in treating medical disorders, such as obesity. Pharmaceutical compositions and methods of making various tricyclic compounds are provided. The compounds are contemplated to have activity against methionyl aminopeptidase 2.

Abstract: Disclosed are furo[3,2-g]chromene derivatives represented by formula (I), stereoisomers, pharmaceutically acceptable salts, and pharmaceutical compositions thereof, as well as uses thereof as estrogen receptor modulators.

Abstract: The present invention provides ophthalmic devices comprising at least one photochromic material which is an indeno-fused naphthopyran having a pi-conjugation extending group bonded to the 11-position of the indeno-fused naphthopyran, the pi-conjugation extending group having at least one pendent halo-substituted group bonded thereto. The pi-conjugation extending group extends the pi-conjugation system of said indeno-fused naphthopyran. The 13-position of the indeno-fused naphthopyran is substantially free of spiro-substituents. The invention further provides photochromic materials of specified structure, photochromic compositions, photochromic articles and optical elements that include the photochromic materials. Other non-limiting embodiments relate to methods of making the ophthalmic devices comprising photochromic materials.

Abstract: The present invention discloses a gamboge acid cyclization analogs, their preparation methods and applications by semi-synthesis with the following structural formula I-III: Where ring A, ring B or/and ring C is 4-10 membered saturated or/and unsaturated aliphatic ring aliphatic heterocycle or aryl heterocycle. R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11 or/and R12 is, independently at each occurrence, optionally substituted substituent of glycosyl, multi-hydroxyl, amino acid, acyloxy, phosphoric acid oxy, sulfonyloxy, alkoxy, aryloxy, heterocyclic oxy, thiol, aliphatic or cyclic group containing oxygen, sulfur, nitrogen or phosphorus, one of the substituents or combinations thereof. The present invention has antitumor activity management, antiviral, antibacterial and antifungal activity management, as anti-tumor, anti-viral, immune, antibacterial and antifungal agents, with other known anti-tumor, anti-viral, immune, together with the application of antibacterial and antifungal.

Abstract: The invention provides reaction-based fluorescent probes for selective imaging of hydrogen sulfide in living cells.

Abstract: A chromene compound represented by the following formula (1): wherein R1, R2, R3, R4, R5, R6, m, and n are defined in the specification. The chromene compound is rarely deteriorated by exposure.

Abstract: A photochromic chromene compound which develops a color of a neutral tint, has high color optical density, a high fading speed and high durability, and has an indeno(2,1-f)naphtho(1,2-b)pyran structure represented by the following formula as the basic skeleton, wherein a sulfur-containing substituent selected from thiol group, alkylthio group, alkoxyalkylthio group, haloalkylthio group, cycloalkylthio group, arylthio group and heteroarylthio group is bonded to the 6-position and/or 7-position carbon atom(s).

Abstract: This invention discloses novel gamma secretase inhibitors of the formula: R2 and R3, or R2 and R4, or R3 and R4, together with the atoms to which they are bound, can form a fused cycloalkyl or fused heterocycloalkyl ring. The cycloalkyl ring or the heterocycloalkyl ring can be optionally substituted with one or more substituents. One or more compounds of formula (I), or formulations comprising such compounds, may be useful, e.g. in treating Alzheimer's Disease.

Abstract: The present invention relates to photochromic materials that include certain indeno-fused naphthopyrans. The indeno-fused naphthopyrans have an amino group (e.g., a piperidino or morpholino group) bonded to the 6-position and an optional halo group (e.g., fluoro) bonded to the 11-position thereof. The photochromic materials of the present invention may have a closed-form electromagnetic radiation absorption spectrum that is shifted to longer wavelengths (e.g., wavelengths of greater than 390 nm), relative to comparable photochromic materials. The present invention also relates to optical elements, such as eyeglasses, that include the photochromic materials of the present invention.

Abstract: The present invention relates to photochromic materials that include certain indeno-fused naphthopyrans. The indeno-fused naphthopyrans have an amino group (e.g., a piperidino or morpholino group) bonded to the 6-position and hydrogen or a halo group (e.g., fluoro) bonded to the 11-position thereof. The photochromic materials of the present invention can have a closed-form electromagnetic radiation absorption spectrum that is shifted to longer wavelengths (e.g., wavelengths of greater than 390 nm), relative to comparable photochromic materials. The present invention also relates to optical elements, such as eyeglasses, that include the photochromic materials of the present invention.

Abstract: The present invention relates to photochromic benzopyranobenzopyrans with additional fusion and to the use thereof in plastics of all types, in particular for ophthalmic purposes. The compounds according to the invention are photochromic benzopyran compounds which can also be regarded as derived from 9-oxa-9,10-dihydrophenanthrene.

Abstract: Novel derivatives of enfumafungin are disclosed herein, along with their, pharmaceutically acceptable salts, hydrates and prodrugs. Also disclosed are compositions comprising such compounds, methods of preparing such compounds and methods of using such compounds as antifungal agents and/or inhibitors of (1,3)-?-D-glucan synthase. The disclosed compounds, their pharmaceutically acceptable salts, hydrates and prodrugs, as well as compositions comprising such compounds, salts, hydrates and prodrugs, are useful for treating and/or preventing fungal infections and associated diseases and conditions.

Abstract: A photochromic chromene compound having an indeno(2,1-f)naphtho(1,2-b)pyran structure as its basic skeleton, an aryl group or a heteroaryl group at the 6-position carbon atom of the structure and an electron donor group having a Hammett constant ?p of not more than ?0.1 at the 7-position carbon atom.

Abstract: The present invention provides a sterol derivative or a pharmaceutically acceptable salt thereof having an activity to promote proliferation of neural stem cells. Namely, the present invention provides a sterol derivative represented by the general formula (I) (wherein Y represents optionally substituted lower alkyl or the like; Xa and Xb are the same or different, and represent a bond or the like; R1, R2, R3, R4, R7 and R8 are the same or different, and represent a hydrogen atom or the like; R5 and R6 are the same or different, and represent a hydrogen atom or the like; R9 represents a hydrogen atom or the like; R10 and R11 together represent a bond or the like; and R12 represents a hydrogen atom or the like) or a pharmaceutically acceptable salt thereof.

Abstract: Described herein are compounds generally comprising an indeno[2?,3?:3,4]naptho[1,2-b]pyran structure. Such compounds may be useful for their photochromic properties, and be used in certain photochromic compositions. Such compositions may further comprise other photochromic compositions and/or materials. Additionally, such compounds and/or compositions may be suitable for preparing certain photochromic articles.

Abstract: Described herein are compounds generally comprising an indeno[2?,3?:3,4]naptho[1,2-b]pyran structure. Such compounds may be useful for their photochromic properties, and be used in certain photochromic compositions. Such compositions may further comprise other photochromic compositions and/or materials. Additionally, such compounds and/or compositions may be suitable for preparing certain photochromic articles. Also described herein are methods for preparing certain photochromic compounds, compositions, and articles.

Abstract: The present invention relates to lactone compounds represented by the following Formulas I and II, and methods of making such lactone compounds. The present invention also relates to methods of making other materials from such lactone compounds, such as fused ring indenol compounds (e.g., indeno-fused naphthols), and fused ring indenopyran compounds (e.g., indeno-fused naphthopyrans).

Abstract: The present invention relates to methods of making fused ring compounds, such as indeno-fused naphthols, and fused ring indenopyran compounds, such as indeno-fused naphthopyrans, that each employ an unsaturated compound represented by the following Formula II. Referring to the unsaturated compound of Formula II: Ring-A can be selected from optionally substituted aryl (e.g., phenyl); m can be, for example, from 0 to 4; R1 for each m can be selected from optionally substituted hydrocarbyl (e.g., C1-C6 alkyl) optionally interrupted with at least one linking group (e.g., —O—); and R3 and R16 can each be independently selected from, for example, hydrogen or optionally substituted hydrocarbyl, such as C1-C8 alkyl. When Ring-A is a phenyl group, the unsaturated compound represented by Formula II can be referred to as an unsaturated indanone acid/ester compound, or an indenone acid/ester compound (depending on whether R16 is hydrogen, or an optionally substituted hydrocarbyl group).

Abstract: The present invention provides a photochromic material which is an indeno-fused naphthopyran of structural formulas I or II, having a pi-conjugation extending group bonded to the 11-position of the indeno-fused naphthopyran, the pi-conjugation extending group having at least one pendent halo-substituted group bonded thereto. The pi-conjugation extending group extends the pi-conjugation system of said indeno-fused naphthopyran. The 13-position of the indeno-fused naphthopyran is substantially free of spiro-substituents. The invention further provides photochromic materials of specified structure, photochromic compositions, photochromic articles and optical elements that include the photochromic material.

Abstract: The present invention relates to photochromic materials that include one or more indeno-fused naphthopyrans that have particular groups at the 7, 11, and 13 positions thereof, and at the position alpha to the oxygen of the pyran ring thereof. With some embodiments, hydrogen or an alkoxy group is bonded to the 7 position, an optionally substituted phenyl is bonded to the 11 position, two alkyl groups are bonded to the 13 position, and two optionally substituted phenyl groups are bonded to the position alpha to the oxygen of the pyran ring of the indeno-fused naphthopyran compound. The 13 position of the indeno-fused naphthopyrans is free of ether groups in which an ether oxygen is bonded to the 13 position, and hydroxyl. The present invention also relates to photochromic articles and compositions that include such indeno-fused naphthopyrans.

Abstract: A chromene compound represented by the following formula (1): wherein R1, R2, R3, R4, R5, R6, m, and n are defined in the specification. The chromene compound is rarely deteriorated by exposure.

Abstract: The present invention relates to compounds represented by the following Formulas (I) and (II), Ring-A of Formulas I and II can be, for example, an aryl group, and Q? and Q?? can each be independently selected from groups, such as, halogen, —OH, —CN, amine groups, amide groups, carboxylic acid ester groups, carboxylic acid groups, alkenyl groups, alkynyl groups, carbonate groups, sulfide groups, and sulfonic acid ester groups. The present invention also relates to photochromic compositions and photochromic articles that include one or more photochromic compounds, such as represented by Formula II.

Abstract: Provided is a compound comprising the structure: (SIG)-(SI-MOD)m. In this compound, SIG is a signaling molecule, SI is a self-immolative structure bound to SIG such that SIG has a reduced signal relative to the signal of SIG without SI, MOD is a moiety bound to SI that is subject to modification by an activator, and m is an integer from 1 to about 10. With this compound, when MOD is modified by an activator, SI is destabilized and self-cleaved from SIG such that SIG generates an increased signal. Also provided is a method of determining whether a sample comprises an activator, using the above-described compound. Additionally provided is a method of determining whether a cell comprises a nitroreductase using the above-described compound where nitroreductase is the activator. Further provided is a method of determining whether a mammalian cell is hypoxic using the above-described compound where nitroreductase is the activator.

Abstract: The present invention provides amide-substituted xanthene fluorescent dyes and reagent for the introduction of phosphonate or sulfo groups into the fluorescent dyes.

Abstract: The present invention provides ophthalmic devices comprising at least one photochromic material which is an indeno-fused naphthopyran having a pi-conjugation extending group bonded to the 11-position of the indeno-fused naphthopyran, the pi-conjugation extending group having at least one pendent halo-substituted group bonded thereto. The pi-conjugation extending group extends the pi-conjugation system of said indeno-fused naphthopyran. The 13-position of the indeno-fused naphthopyran is substantially free of spiro-substituents. The invention further provides photochromic materials of specified structure, photochromic compositions, photochromic articles and optical elements that include the photochromic materials. Other non-limiting embodiments relate to methods of making the ophthalmic devices comprising photochromic materials.

Abstract: A chromene compound represented by the following formula (1): wherein R1, R2, R3, R4, R5, R6, m, and n are defined in the specification. The chromene compound is rarely deteriorated by exposure.