Invention Grant
US07879904B2 9, 10-α,α-OH-taxane analogs and methods for production thereof 有权
9,10-α,α-OH-紫杉烷类似物及其制备方法

9, 10-α,α-OH-taxane analogs and methods for production thereof
Abstract:
The present invention relates to a method for the treatment of cancer in a cancer patient. In particular, the invention provides a method for the treatment comprising administering a taxane compound to a cancer patient, wherein the taxane compound is made by a process comprising treating a first compound represented by either Formula G′ or Formula M′: with a second compound of generalized formula R8R9C(OCH3)2 and an acid selected from the group consisting of camphor sulfonic acid (CSA), p-toluene sulfonic acid (PTSA), hydrochloric acid (HCl) and acetic acid (AcOH), wherein R1 and R2 are each selected from H, an alkyl group, an olefinic group, an aromatic group, an O-alkyl group, an O-olefinic group, or an O-aromatic group; R7 is an alkyl group, an olefinic group, or an aromatic group; P1 is a hydroxyl protecting group; P5 is H or an acid labile protecting group at the 7-O position; R8 is H, alkyl group, olefinic or aromatic group; and R9 is: H, alkyl group, olefinic or aromatic or is as defined in the specification.
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