asymmetric hydrolysis of meso-1,3-cis, 3,5-cis-1,3-diacetoxy-5-benzyloxycyclohexane 1 afforded (1S,3S,5R)-2 of 87% e.e. Starting from this compound, compactin lactone moiety 17A and its C-6 diastereomer 17B were diastereoselectively synthesized. Furthermore, formal synthesis of quinic acid was also achieved.
猪肝
酯酶(PLE)催化的不对称
水解的内消旋-1,3-顺式,3,5-顺式-1,3-
二乙酰氧基-5- benzyloxycyclohexane 1得到(1小号,3小号,5 - [R )- 2 87从该化合物开始,非对映选择性地合成紧密蛋白内酯部分17A及其C-6非对映异构体17B。此外,还实现了
奎宁酸的正式合成。