C7 lactyloxy-substituted taxanes

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

Reexamination Certificate

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C549S510000

Reexamination Certificate

active

11071912

ABSTRACT:
A taxane having the formula:wherein X3is furyl, X5is t-butoxycarbonyl, Bz is benzoyl, and Ac is acetyl.

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