Abstract: As described herein, the present invention provides compounds useful for treating or lessening the severity of a neurodegenerative disorder. The present invention also provides methods of treating or lessening the severity of such disorders wherein said method comprises administering to a patient a compound of the present invention, or composition thereof. Said method is useful for treating or lessening the severity of, for example, Alzheimer's disease.

Abstract: This invention provides novel compounds comprising the following anti-inflammatory pharmacore: wherein X, R1 and R2 are defined herein. Also provided are pharmaceutical compositions, kits and articles of manufacture comprising such compounds, methods and intermediates useful for making the compounds, and methods of using the compounds and compositions.

Abstract: This invention provides novel compounds comprising the following anti-inflammatory pharmacore: wherein X, R1 and R2 are defined herein. Also provided are pharmaceutical compositions, kits and articles of manufacture comprising such compounds, methods and intermediates useful for making the compounds, and methods of using the compounds and compositions.

Abstract: Organic materials which possess outstanding stability to oxidative, thermal or light-induced degradation comprise as stabilizers at least one compound of the formula (I) wherein the general symbols are as defined in claim 1. The compounds of formula I are especially useful as stabilizers for protecting polymers and lubricants against oxidative, thermal or light-induced degradation and as scavengers for oxidized developer in color photographic material.

Abstract: A non-aqueous electrolyte solution is provided that realizes a large capacity, exhibits high storage characteristics and cycle characteristics, and is capable of inhibiting gas generation.

Abstract: The instant invention provides potent antiandrogen compounds, such as 3?-acetoxyandrost-1,5-diene-17-ethylene ketal and 3?-hydroxyandrost-1,5-diene-17-ethylene ketal, and methods for their use in the prevention and treatment of biological conditions mediated by androgen receptors. Thus, for example, compounds of the invention are useful in the prevention and treatment of prostrate cancer. Furthermore, it has been discovered that compounds of the invention are useful in the prevention and treatment of androgen-independent cancers such as androgen-independent prostrate cancer. Finally, inventive compounds may be used to treat antiandrogen induced withdrawal syndrome.

Abstract: The instant invention provides potent antiandrogen compounds, such as 3?-acetoxyandrost-1,5-diene-17-ethylene ketal and 3?-hydroxyandrost-1,5-diene-17-ethylene ketal, and methods for their use in the prevention and treatment of biological conditions mediated by androgen receptors. Thus, for example, compounds of the invention are useful in the prevention and treatment of prostrate cancer. Furthermore, it has been discovered that compounds of the invention are useful in the prevention and treatment of androgen-independent cancers such as androgen-independent prostrate cancer. Finally, inventive compounds may be used to treat antiandrogen induced withdrawal syndrome.

Abstract: As described herein, the present invention provides compounds useful for treating or lessening the severity of a neurodegenerative disorder. The present invention also provides methods of treating or lessening the severity of such disorders wherein said method comprises administering to a patient a compound of the present invention, or composition thereof. Said method is useful for treating or lessening the severity of, for example, Alzheimer's disease.

Abstract: The instant invention provides potent antiandrogen compounds, such as 3?-acetoxyandrost-1,5-diene-17-ethylene ketal and 3?-hydroxyandrost-1,5-diene-17-ethylene ketal, and methods for their use in the prevention and treatment of biological conditions mediated by androgen receptors. Thus, for example, compounds of the invention are useful in the prevention and treatment of prostrate cancer. Furthermore, it has been discovered that compounds of the invention are useful in the prevention and treatment of androgen-independent cancers such as androgen-independent prostrate cancer. Finally, inventive compounds may be used to treat antiandrogen induced withdrawal syndrome.

Abstract: The instant invention provides potent antiandrogen compounds, such as 3?-acetoxyandrost-1,5-diene-17-ethylene ketal and 3?-hydroxyandrost-1,5-diene-17-ethylene ketal, and methods for their use in the prevention and treatment of biological conditions mediated by androgen receptors. Thus, for example, compounds of the invention are useful in the prevention and treatment of prostrate cancer. Furthermore, it has been discovered that compounds of the invention are useful in the prevention and treatment of androgen-independent cancers such as androgen-independent prostrate cancer. Finally, inventive compounds may be used to treat antiandrogen induced withdrawal syndrome.

Abstract: The instant invention provides potent antiandrogen compounds, such as 3?-acetoxyandrost-1,5-diene-17-ethylene ketal and 3?-hydroxyandrost-1,5-diene-17-ethylene ketal, and methods for their use in the prevention and treatment of biological conditions mediated by androgen receptors. Thus, for example, compounds of the invention are useful in the prevention and treatment of prostrate cancer. Furthermore, it has been discovered that compounds of the invention are useful in the prevention and treatment of androgen-independent cancers such as androgen-independent prostrate cancer. Finally, inventive compounds may be used to treat antiandrogen induced withdrawal syndrome.

Abstract: Steroid compounds having various oxygen substitution on the steroid nucleus are disclosed. A specific functionality present on many of the steroid compounds is oxygen substitution at both of positions 6 and 7. Thus, certain steroids have oxygen substitution at C6 and C7, and some have specific stereochemistries such as 6? and 7? oxygen substitution, and an alpha hydrogen at the 5 position in addition to having 6? and 7? oxygen substitution. Steroids having 3,4-epoxy functionality are also disclosed. In addition, steroids having C17 pyran and ?-lactone functionality, with oxygen substitution at C6 and C7, or at C15, of the steroid nucleus, are disclosed.

Abstract: Steroids containing a cyclohexene moiety are efficiently oxidized to the corresponding ?,?-unsaturated ketone using copper iodide and t-butyl hydroperoxide. A steroid compound containing the ?,?-unsaturated ketone structure is efficiently converted to the corresponding vicinal diol using a hydroborating reagent followed by oxidative workup, e.g., borane followed by sodium perborate. Benzoyl and substituted benzoyls are superior protecting groups for hydroxyl groups present in the compounds.

Abstract: Disclosed herein are mixed steroidal tetraoxanes having the following structural formula 1 1

Abstract: The present invention involves intermediates, including a 7&agr;-substituted steroid (II), 1

Abstract: A procedure for oxidizing organic compounds having allylic hydrogen atom(s) involving the steps of reactively contacting the organic compound with a combination of a periodic acid or metal periodate and an alkyl hydroperoxide under conditions of normal as well as elevated pressure of a suitable gas like air. The reaction can conveniently be conducted at temperatures between about 0-65.degree. C. in a cosolvent system of water and organic solvent(s).

Abstract: Compounds of the general formula Ia and Ib are described ##STR1## in which R.sup.1 and R.sup.2 are the same or different and represent hydrogen, straight-chain or branched C.sub.1 to C.sub.6 lower alkyl or an aryl group optionally substituted by electron-withdrawing groups, R.sup.3 denotes a cleavable group, W is hydrogen, halogen or a pseudohalogen and at least one of the groups R.sup.4 or R.sup.5 is a group stabilizing the dioxetane structure and at most one of the groups R.sup.4 or R.sup.5 represents hydrogen and X or Y represents oxygen, N-R or C(R).sub.2 in which R has the meanings stated for R.sup.1 and R.sup.2 or represents a mesomeric double bond or a carbonyl group and n denotes the number 0 or 1 and m denotes the number 1 or 2, as well as a process for their production. These compounds are new and can be used as substrates in immunological assays and in DNA diagnostics using activating agents for colour formation.

Abstract: A procedure for oxidizing organic compounds having allylic hydrogen atom(s) involving the steps of reactively contacting the organic compound with a combination of an alkali metal periodate and an alkyl hydroperoxide. The reaction can conveniently be conducted under ambient temperature and pressure conditions, and is conveniently conducted in a cosolvent system of water and organic solvent(s).

Abstract: The invention is directed to novel steroid intermediate products of general formula I ##STR1## The steroid intermediate products which can be isolated according to the invention are suitable for the synthesis of 13-ethyl-11-methylene-18,19-bisnor-17.alpha.-pregn-4-en-20-in-17-ol (desogestrel).Further, processes for producing the steroid intermediate products of general formula I are described. The olefination of the 11-oxo steroids is carried out under the influence of ultrasound.

Abstract: The novel intermediates of the formula ##STR1## wherein L, K and M are as defined in the specification which are useful intermediates for the preparation of .DELTA..sup.4,9(11),16 -pregnatriene-3-ones.

Abstract: Novel antiandrogenic agents are provided. An exemplary group of compounds has the structural formula (I) ##STR1## wherein R.sup.1 through R.sup.10, a and b are as defined herein. Pharmaceutical compositions and methods for using the compounds of formula (I) to treat androgen-related clinical conditions are provided, as are methods and compositions for using the compounds as contraceptive agents.

Abstract: Synthetically produced cephalostatin analogues of the formula I described in the disclosure, synthetic methods for preparing the cephalostatin analogues, pharmaceutical compositions containing the analogues and methods for using the analogues as active agent in pharmaceutical uses, particularly due to their cytotoxic activity.

Abstract: A process for the production of 1-methyl-3-keto-.DELTA..sup.1,4 steroids of general formula I ##STR1## in which St symbolizes the radical of asteroid molecule, where a 3-keto-.DELTA..sup.1,4 steroid of general formula II ##STR2## in which St has the above-mentioned meaning, is reacted in an inert solvent in the presence of a nickel salt soluble therein with an organometallic compound of formula III, IV or V ##STR3## where X, Y.sub.1, Y.sub.2, Y.sub.3, Z.sub.1 and Z.sub.2 are as defined in the specification.

Abstract: Compounds of the formula: ##STR1## wherein X is H, F, Cl, or CH.sub.3and Y is ##STR2## wherein R.sub.1 is H, alkyl of 1-5 carbon atoms, phenyl, or benzyl;R.sub.2 is COOR.sub.6, R.sub.5 COOR.sub.6, or R.sub.5 CONHR.sub.6 ;R.sub.3 is H, F, OH, or CH.sub.3 ;R.sub.4 is CH.sub.2 OH, CH.sub.2 OCOR.sub.6, COOR.sub.6, or CONHR.sub.6 ;R.sub.5 is alkyl of 1-3 carbon atoms;R.sub.6 is alkyl of 1-5 carbon atoms, or benzyl;represents a single or double bond;.about. represents .alpha.-position, .beta.-position, or a mixture of both .alpha.- and .beta.-positions; and-- represents .alpha.-position;and methods for preparing the same.

Abstract: New 9.alpha.-hydroxy-17-methylene steroids are prepared by the introduction of a substituted 17-methylene group in 9.alpha.-hydroxyandrost-4-ene-3, 17-dione.The resulting compounds are useful starting compounds in the synthesis of corticosteroids.

Abstract: The invention relates to a process for the production of (+)-bicyclo[3.3.0]octan-3-one-2 carboxylic acid steroid esters of formula I ##STR1## in which X means oxygen or the radicals --O--(CH.sub.2).sub.n --O-- or --O--CH.sub.2 --C(CH.sub.3).sub.2 --CH.sub.2 --O--,n means 2 or 3R.sub.2 means hydrogen or methyl,Y means the radicals X or X.sub.1,X.sub.1 means the radicals OCH.sub.3 or OCOR.sub.3,R.sub.3 means methyl, ethyl, phenyl, benzyl or pivalyl and the radical ##STR2## the radicals ##STR3## and X and X.sub.1 have the meanings indicated above, characterized in that D,L-bicyclo[3.3.0]octan-3-one-2 carboxylic acid esters of formula II ##STR4## in which X has the meaning indicated above and R is an alkyl group with 1-4 carbon atoms, with optically active steroids with a free 17'beta hydroxy group of formula III ##STR5## in which R.sub.

Abstract: Compounds of the formula: ##STR1## wherein one X is COOR, CH.sub.2 COOR, CH(COOR).sub.2, CONHR, CH.sub.2 CONHR, or CNremaining X's are H, F, CH.sub.3, OH, COOR, CH.sub.2 COOR, CH(COOR).sub.2, CONHR, CH.sub.2 CONHR, or CN;Y is ##STR2## R is H, alkyl of 1-5 carbon atoms, or benzyl; R.sub.1 is CH.sub.2 OR.sub.3, COOR, or CONHR;R.sub.2 is H, OR.sub.3, or BR;R.sub.3 is H, COR.sub.4, or tetrahydropyranyl;R.sub.4 is alkyl of 1-5 carbon atoms or benzyl;R.sub.5 is H or COR.sub.4 ;represents a single or double bond;represents .alpha.-position, .beta.-position, or a mixture of .alpha.- and .beta.-positions; and--- represents .alpha.-position;and methods for preparing the same.

Abstract: A process of preparing radical anions which comprises reacting sodium and a polycyclic aromatic compound in a reaction solvent to prepare radical anions and supplying androstane-1,4-diene-3,17-dione-17-acetal into the obtained reaction mixture to reduce the same into an estrone acetal, characterized in that a solvent comprising polyethers having three or more ether bonds and maintained at a concentration higher than a predetermined value is used as the reaction solvent and the reaction is carried out at a temperature of from the melting point of sodium to 105.degree. C. The process according to this invention can produce an estrone acetal at a high yield and with economical advantages in the industrial scale and the estrone acetal thus obtained is useful as an estrone precursor which is important as a female hormone.