(E)-(8R,10S,11S,12S,13S,21aS)-11-(tert-Butyl-dimethyl-silanyloxy)-13-isopropyl-10,12-dimethoxy-8,18,18-trimethyl-1,3,4,8,9,10,11,12,13,18,19,21a-dodecahydro-2H-14,20-dioxa-4a-aza-benzocyclononadecene-5,6,7,15,21-pentaone 在
氢氟酸 作用下,
以
乙腈 为溶剂,
生成
(E)-(1R,9S,18S,19S,20S,21S,23R)-1-Hydroxy-18-isopropyl-19,21-dimethoxy-13,13,23-trimethyl-11,17,24-trioxa-4-aza-tricyclo[18.3.1.04,9]tetracos-14-ene-2,3,10,16-tetraone