Liu Xian, Nie Huifang, Yao Lin, Jiang Ru, Chen Weiping
School of Pharmacy, Fourth Military Medical University 169 Changle West Road Xian 710032 P. R. China
RSC Adv. 2020 Apr 30;10(29):16882-16885. doi: 10.1039/d0ra02994g. eCollection 2020 Apr 29.
()-5-Methyl-tetrahydropyran-2-one 1 is a by-product in the production of key intermediates of steroidal hormones. Asymmetric synthesis of natural oxacyclododecindione-type macrolactones 2 and 3 has been realized for the first time from ()-1 in seven and eight steps with 37% and 27% overall yield, respectively.
()-5-甲基-四氢吡喃-2-酮1是甾体激素关键中间体生产中的副产物。首次从()-1出发,经七步和八步反应分别以37%和27%的总收率实现了天然氧杂环十二烷二酮型大环内酯2和3的不对称合成。