在
Grubbs catalyst first generation 作用下,
以
二氯甲烷 为溶剂,
以75%的产率得到(1R,3S,6R,7S,9R,11Z,14S,16R,18S,19R,21S,22R)-21-methyl-6,18,22-tris(phenylmethoxy)-7,19-bis(phenylmethoxymethyl)-2,8,15,20-tetraoxatetracyclo[12.9.0.03,9.016,21]tricosa-4,11-diene
参考文献:
名称:
Design and Synthesis of a Conformationally Restricted Analogue of the EFGH-Ring System of Ciguatoxin
摘要:
The fused-hexahydrooxonine (F-ring) of ciguatoxin (CTX), as well as its EFGH-ring fragment, undergoes a slow conformational change between two conformers in solution. In this paper, we designed and synthesized a conformationally restricted analogue of the EFGH-ring system of ciguatoxin. Chemo- and stereoselective epoxidation of the F-ring successfully impeded the dynamic behavior without affecting the overall three-dimensional shape of the molecule.
Design and Synthesis of a Conformationally Restricted Analogue of the EFGH-Ring System of Ciguatoxin
摘要:
The fused-hexahydrooxonine (F-ring) of ciguatoxin (CTX), as well as its EFGH-ring fragment, undergoes a slow conformational change between two conformers in solution. In this paper, we designed and synthesized a conformationally restricted analogue of the EFGH-ring system of ciguatoxin. Chemo- and stereoselective epoxidation of the F-ring successfully impeded the dynamic behavior without affecting the overall three-dimensional shape of the molecule.