C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/237.1, 260/2
C07D 498/18 (2006.01) C12P 17/18 (2006.01)
Patent
CA 1131629
20-O-ACYLMAYTANSINOIDS Abstract of the Disclosure Novel 20-demethoxy-20-acyloxymaytansinoids represent- able by the formula: Image (wherein X is chlorine or hydrogen; R1 is hydrogen or acyl group; R2 is acyl group) are produced from 20- demethoxy-20-hydroxymaytansinoids by means of acylation. The compounds are useful as antifungal, anti- protozoal or antitumor agent.
344692
Asai Mitsuko
Izawa Motowa
Nakahama Kazuo
Fetherstonhaugh & Co.
Takeda Chemical Industries Ltd.
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