摘要 |
Epothilone derivatives of formula (I)-(III) are new. R = H or 1-4C alkyl; Y Z = H, halo, pseudohalogen, OH, 1-6C acyloxy, 1-6C alkoxy or benzoyloxy; or Y+Z = bond or O; (a) R' = Q; A = H; B = OR1; and R" = R2; or R"+B = C(O)O, C(S)O, S(O)O, Si(R")2O or C(R")(R"')O; (b) R' = C(=X)Me or CH(OX')Me; A = H; B = OR1; and R" = R2; (c) R' = Q; and A+B = bond; X = O, NOR4, N-NR4R5 or N-NHCONR4R5; X' = H, 1-18C alkyl, 1-18C acyl, benzyl, benzoyl or cinnamoyl; Q = a group of formula (i); and R1-R5 = H, 1-6C alkyl, 1-6C acyl, benzoyl, 1-4C trialkylsilyl, or benzyl or phenyl (both optionally substituted by 1-6C alkoxy, 6C alkyl, OH and halo); or R4+R5 = 2-6C alkylene. Epothilone A and B are excluded. Also claimed is the production of epothilone A or B and/or their 12,13-bis-epi derivatives comprising the epoxidation of epothilone C (for A or derivatives) or D (for B or derivatives) especially using dimethyldioxirane or a peracid.
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申请人 |
GESELLSCHAFT FUER BIOTECHNOLOGISCHE FORSCHUNG MBH (GBF), 38124 BRAUNSCHWEIG, DE |
发明人 |
HOEFLE, GERHARD, PROF. DR., 38124 BRAUNSCHWEIG, DE;KIFFE, MICHAEL, DR., 79639 GRENZACH-WYHLEN, DE |