Abstract: A process for the preparation of a compound of formula I, wherein R1 and R2 are ortho or para substituents, independently selected from the group consisting of hydrogen, hydroxyl, C1-C6 alkyl, C1-C6 alkoxy, C7-C9 aralkoxy, C2-C7 alkanoyloxy, C1-C6 alkylmercapto, halo and trifluoromethyl; R3 is hydrogen or C1-C6 alkyl; R4 is hydrogen, C1-C6 alkyl, formyl or C2-C7 alkanoyl; n is one of the integers 0, 1, 2, 3 or 4; and the dotted line represents optional olefinic unsaturation; comprising hydrogenating a compound of formula III, in the presence of a nickel or cobalt catalyst at a temperature of about 5° C. to 25° C.

Abstract: A process for the preparation of a compound of formula I, wherein R1 and R2 are ortho or para substituents, independently selected from the group consisting of hydrogen, hydroxyl, C1-C6 alkyl, C1-C6 alkoxy, C7-C9 aralkoxy, C2-C7 alkanoyloxy, C1-C6 alkylmercapto, halo and trifluoromethyl; R3 is hydrogen or C1-C6 alkyl; R4 is hydrogen, C1-C6 alkyl, formyl or C2-C7 alkanoyl; n is one of the integers 0, 1, 2, 3 or 4; and the dotted line represents optional olefinic unsaturation; comprising hydrogenating a compound of formula III, in the presence of a nickel or cobalt catalyst at a temperature of about 5° C. to 25° C.

Abstract: A process for the preparation of a compound of formula I, wherein R1 and R2 are ortho or para substituents, independently selected from the group consisting of hydrogen, hydroxyl, C1–C6 alkyl, C1–C6 alkoxy, C7–C9 aralkoxy, C2–C7 alkanoyloxy, C1–C6 alkylmercapto, halo and trifuoromethyl; R3 is hydrogen or C1–C6 alkyl 1, 2, 3 or 4; and the dotted line represents optional olefinic unsaturation; comprising hydrogenating a compound of formula III, in the presence of a nickel or cobalt catalyst at a temperature of about 5° C. to 25° C.

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

Abstract: Taxane derivatives having alternative C9 substituents.

Abstract: A process for the preparation of cyclohexanol derivatives of formula (I) by reacting a compound of formula (II) with a compound of formula (III) in the presence of a base catalyst of formula (IV) or (V). In the above formula, R1-R9, A, B, X and p have tghe meanings given in the specification.

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

Abstract: A process for the preparation of a compound of formula I, 1