Enantiodivergent Total Syntheses of Nanaomycins and Their Enantiomers, Kalafungins
作者:Kuniaki Tatsuta、Kohji Akimoto、Masahiko Annaka、Yutaka Ohno、Mitsuhiro Kinoshita
DOI:10.1246/bcsj.58.1699
日期:1985.6
The first, enantiospecific total syntheses of pyranonaphthoquinone antibiotics, nanaomycins D and A, and their enantiomers, kalafungin and 4-deoxykalafunginic acid are described by an “enantiodivergent” strategy from a common optically active intermediate, (1S,3RS,4S)-3,4-dihydro-5,9,10-trimethoxy-1-methyl-1H-naphtho[2,3-c]pyran-3,4-diol, which has been derived from L-rhamnose via condensation of
第一个,吡喃萘醌抗生素,nanaomycins D 和 A 及其对映异构体,kalafungin 和 4-deoxykalafunginic 酸的对映特异性全合成是通过来自常见光学活性中间体 (1S,3RS,4S)-3 的“对映发散”策略描述的, 4-dihydro-5,9,10-trimethoxy-1-methyl-1H-naphtho[2,3-c]pyran-3,4-diol,由L-鼠李糖通过4-甲氧基-3缩合得到(苯基磺酰基)-1(3H)-异苯并呋喃酮和甲基 3,4,6-三脱氧-α-L-甘油-己基-3-烯吡喃糖苷-2-酮糖。