Abstract: Fluorine-containing dioxolane compounds and electrolytic solution compositions containing the fluorine-containing dioxolane compounds are disclosed. Lithium secondary batteries or electric double layer capacitors, having various improved characteristics such as improved charge and discharge cycle life or improved durability over a long period of time can be obtained by using the electrolytic solution compositions.

Abstract: The present invention relates to novel derivatives of 10-deacetylbaccatine III and of 10-deacetyl-14 .beta.-hydroxybaccatine III, having cytoxic and anti-tumoral activity. They are prepared starting from the so-called syntons or from other taxanes of natural origin, by selective oxidation of the hydroxyl in position 10 to keto function and subsequent esterification in position 13, if necessary, with isoserine chains variously substituted. The products of the invention can be administered by injection or orally, when suitably formulated.

Abstract: A method for producing paclitaxel is accomplished by first esterifying C-7-CBZ baccatin III with a C3'-N-CBZ-C2'-O-protected (2R, 3S)-3-phenylisoserine side chain to form a first intermediate. Next, the carbobenzyloxy groups at C-7 and at the C3' nitrogen site of the first intermediate are respectively replaced with hydrogen and PhCO to produce a second intermediate that is next deprotected at C2' by replacing the protecting group with hydrogen. The C2' protecting group is a benzyl-type protecting group, preferably benzyloxymethyl or benzyl. Excess amounts, such as six equivalents, of the side chain are preferably employed. DMAP and a dialkylcarbodiimide are also preferably used during esterification. Various preferred reaction temperatures, times, and purification steps are disclosed.

Abstract: Furfuryl alcohol/formaldehyde resins exhibiting high water compatibility and low amounts of volatile organic compounds such as furfuryl alcohol.

Abstract: The present invention provides methods for making a novel class of 1-deoxy paclitaxel derivatives. These derivatives include 1-deoxy paclitaxel. The derivatives of the present invention are potent cytotoxic agents.

Abstract: Taxane derivatives having an alkoxy, alkenoxy or aryloxy substituted C13 side chain.

Abstract: A 1,2-dioxetane derivative of formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 are each independently a hydrogen atom, an alkyl group, or an aryl group, R.sup.2 and R.sup.3 together and R.sup.4 and R.sup.5 together can be joined as a cyclo-alkyl group, R.sup.6 is a hydroxyl group, an alkoxyl group, an aralkyloxy group, --OSi(R.sup.8 R.sup.9 R.sup.10) in which R.sup.8, R.sup.9 and R.sup.10 are each independently an alkyl group, or a phosphate salt, and R.sup.7 is a hydrogen atom, a halogen atom, an alkyl group, or an alkoxyl group.

Abstract: C-2'-methylpyridinium acetates (MPA)-taxol and C-2'-methylpyridinium acetates (MPA)-taxotere are prodrugs having good aqueous solubility, low toxiticity and high anti-minor activity. These prodrugs are administered to patients for treating minors. Adminstration may be by injection or infusion.

Abstract: Taxane derivatives having alternative C2 substituents.

Abstract: New taxoids of general formula (I): ##STR1## wherein Z represents a hydrogen atom or a radical of general formula: ##STR2## in which R.sub.1 represents an optionally substituted benzoyl radical, a thenoyl or furoyl radical or a radical R.sub.2 --O--CO-- in which R.sub.2 represents an alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, bicycloalkyl or phenyl radical, optionally substituted, or a heterocyclic radical,R.sub.3 represents an alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, phenyl, naphthyl or aromatic heterocyclic radical,either R.sub.4 represents a hydrogen atom,R.sub.6 and R.sub.7 together form a ketone function, andR and R.sub.5 together form a bond,or R.sub.4 represents a hydrogen atom or ahydroxyl radical or an alkoxy, alkenyloxy or alkynyloxy radical, optionally substituted, an alkanoyloxy, aryloxy, alkenoyloxy, alkynoyloxy, cycloalkanoyloxy, alkoxyacetyl, alkylthioacetyl, alkyloxycarbonyloxy, cycloalkyloxy, cycloalkenyloxy, carbamoyloxy, alkylcarbamoyloxy or dialkylcarbamoyloxy radical,R.

Abstract: Taxane derivatives having a 3' butenyl substituted C13 side chain.

Abstract: This invention relates to a method of stereoselective preparation of a derivative of .beta.-phenylisoserine of formula (I) by the action of an N-carbonyl-benzylimine of formula (II) on an optically active amide of a protected hydroxyacetic acid of formula (III), followed by hydrolysis of the product obtained. In formula (I), (II) or (III), R is an optionally substituted phenyl radical or R.sub.1 --O, Ar is an optionally substituted aryl radical and G.sub.1 is a hydroxy function protection grouping. The product of formula (I) is particularly useful in preparing taxol and Taxotere which have remarkable antitumor properties.

Abstract: This invention relates to the compounds represented by general formula (I) and the processes for their preparation, wherein R is selected from C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.6 cycloalkyl, phenyl unsubstituted or substituted by a halogen atom or nitro group, biphenyl unsubstituted by a halogen atom or nitro group, naphthyl unsubstituted or substituted by a halogen atom or nitro group. The compounds of this invention are used to prepare agents for prevention and treatment of AIDS and drugs against malaria and toxoplasmosis.

Abstract: The present invention is directed to compounds that are analogs of the natural product suksdorfin. Compounds of the present invention include those having Formula I: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are defined herein. The invention is also directed to methods of making these compounds, pharmaceutical compositions including these compounds and methods of using the compounds to inhibit retroviral infections in cells and tissues of animals. A method for stereoselectively preparing compounds within the scope of the invention by catalytic asymmetric dihydroxylation is also disclosed.

Abstract: This invention relates to a method of preparing taxane derivatives of formula (I) by esterification of protected baccatin III or 10-deacetylbaccatin III by means of an acid of formula (VII), elimination of protection groupings and acylation of the amine function of the side chain. The products of formula (I) have remarkable antitumor and antileukemia properties. In formulae (I) and (VII): Ar stands for aryl, R is hydrogen or acetyl, R.sub.1 is a benzoyl radical or an R.sub.2 --O--CO-- radical in which R.sub.2 is alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, bicycloalkyl, phenyl or heterocyclyl, R.sub.3 is a trihalomethyl radical or phenyl substituted by a trihalomethyl radical, R.sub.4 is a hydrogen atom or is the same as R.sub.1.

Abstract: A method for purifying 10-deacetylbaccatin III by centrifugal partition chromatography with aliphatic ketone and water as solvent mixture.

Abstract: A process for preparing N-acyl, N-sulfonyl and N-phosphoryl substituted isoserine esters in which a metal alkoxide is reacted with a .beta.-lactam.

Abstract: Taxane derivatives having alternative C7 substituents.

Abstract: Taxane derivatives modified at 13-position of the taxane derivative skeleton (taxol numbering) of formula (I), wherein R, R.sub.a, R.sub.b, R.sub.c, R.sub.1, R.sub.2, R.sub.3 are appropriate organic residues can be antitumor agents.

Abstract: Novel acetogenins isolated from Asimina triloba and Goniothalamus giganteus of the family Annonaceae and derivatives of those and other acetogenins are described. Bioactive cyclic formaldehyde acetal derivatives are prepared from Annonaceous acetogenins having 1,2-, 1,4- or 1,5-diols. A non-adjacent bis-tetrahydrofuran (THF) acetogenin is prepared from an unsaturated mono-THF acetogenin earlier isolated from Goniothalamus giganteus. The substantially pure acetogenins and acetogenin derivatives of the invention exhibit cytotoxicity to human solid tumor cell lines equipotent to adriamycin or orders of magnitude more potent than adriamycin, and they exhibit effective pesticidal activities.