摘要:
A taxane having a cyclopentyl ester substituent at C10, a keto substituent at C9, a hydroxy substituent at C2, a 2-thienyl substituent at C3′ and an isopropoxycarbamate substituent at C3′.
摘要:
The present invention is directed to a process for the preparation of β-lactams. Generally, an imine is cyclocondensed with a ketene acetal or enolate to form the β-lactam product in a “one pot” synthesis, this process is generally performed at a higher temperature than conventional processes.
摘要:
A process for the resolution of an enantiomeric mixture of &bgr;-lactams containing an ester, the process comprising selectively hydrolyzing the ester of one of the enantiomers by combining the mixture with homogenized liver.
摘要:
Taxanes having an ethyl ester or cyclopropyl ester substituent at C(10), a keto substituent at C(9), a hydroxy substituent at C(7), a thienyl substituent at C(3′) and a cyclobutyloxycarbamate or cyclopentyloxycarbamate substituent at C(3′), pharmaceutical compositions comprising such taxanes, methods of treatment and administration, and methods of preparation of medicaments comprising the taxanes.
摘要:
A process for the resolution of an enantiomeric mixture of β-lactams containing an ester, the process comprising selectively hydrolyzing the ester of one of the enantiomers by combining the mixture with homogenized liver.
摘要:
A taxane having a cyclopentyl ester substituent at C10, a keto substituent at C9, a hydroxy substituent at C2, a 2-thienyl substituent at C3′ and an isopropoxycarbamate substituent at C3′.
摘要:
The present invention provides processes for the production of docetaxel. Docetaxel is produced by protecting the C(7) and the C(10) hydroxy groups of 10-DAB with a bridging silicon-based protecting group. The resulting 7,10-protected 10-DAB derivative is then derivatized and deprotected to form docetaxel.
摘要:
The present invention provides processes for the production of paclitaxel. Paclitaxel is produced by protecting the C(7) and the C(10) hydroxy groups of 10-DAB with a bridging silicon-based protecting group. The resulting 7,10-protected 10-DAB derivative is then derivatized and deprotected to form paclitaxel.
摘要:
A process for the preparation of a composition having the formula: in which a compound having the formula: is treated with a base and a silylating agent.
摘要:
A process for the preparation of a compound having the formula: the process comprising treating a compound having the formula: with an alkyl metal species or with a Lewis acid in the presence of a tertiary amine base, wherein P2 is hydrogen or a hydroxyl protecting group.