中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
阿克拉菌酮 | aklavinone | 16234-96-1 | C22H20O8 | 412.396 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | ζ-rhodomycinone | 21179-17-9 | C22H20O8 | 412.396 |
—— | 7-O-(3-Amino-2,3,6-trideoxy-α-L-lyxo-hexopyranosyl)-ε-rhodomycinone | 76123-96-1 | C28H31NO11 | 557.554 |
甲基(1R,2R)-2-乙基-2,5,7,12-四羟基-4,6,11-三羰基-1,2,3,4,6,11-六氢四省-1-羧酸酯 | Maggiemycin | 81341-47-1 | C22H18O9 | 426.4 |
The epimerisation at C10 of ε-rhodomycinone by aqueous alkali treatment of its 6,7-acetonide is described. Daunosaminyl ε-rhodomycinone and daunosaminyl 10-epi-ε-rhodomycinone were prepared and compared with regard to their antibacterial properties. Daunosaminyl ε-pyrromycinone and 10-descarbomethoxy-ε-pyrromycin were synthesized and their antitumor properties were compared with some naturally occurring glycosides of ε-pyrromycinone.
The dnrQS genes from the daunorubicin producer Streptomyces peucetius were characterized by DNA sequencing, complementation analysis, and gene disruption. The dnrQ gene is required for daunosamine biosynthesis, and dnrS appears to encode a glycosyltransferase for the addition of the 2,3,6-trideoxy-3-aminohexose, daunosamine, to epsilon-rhodomycinone.