(4E,14E,16E)-(6S,8S,9R,10S,13R)-22-Chloro-10-(1-ethoxy-ethoxy)-12,12-bis-ethylsulfanyl-13,21-dimethoxy-2,6,9,17-tetramethyl-7-oxa-2-aza-tricyclo[17.3.1.06,8]tricosa-1(23),4,14,16,19,21-hexaen-3-one 在
calcium carbonate 、 mercury dichloride 作用下,
以
乙腈 为溶剂,
反应 3.0h,
以67%的产率得到(4E,14E,16E)-(6S,8S,9R,10S,13R)-22-Chloro-10-hydroxy-13,21-dimethoxy-2,6,9,17-tetramethyl-7-oxa-2-aza-tricyclo[17.3.1.06,8]tricosa-1(23),4,14,16,19,21-hexaene-3,12-dione