(12E,17E,19E)-(7R,10R,11R,21S)-21-(tert-Butyl-diphenyl-silanyloxy)-10-isopropyl-11,19-dimethyl-9,26-dioxa-3,15,28-triaza-tricyclo[23.2.1.03,7]octacosa-1(27),12,17,19,25(28)-pentaene-2,8,14,23-tetraone 在
HF*2pyridine 作用下,
以
二氯甲烷 为溶剂,
以70%的产率得到8,9,14,15,24,25,26,26alpha-八氢-14-羟基-4,12-二甲基-3-(1-甲基乙基)-(3R,4R,5E,10E,12E,14S,26alphaR)-3H-21,18-次氮基-1H,22H-吡咯并[2,1-c][1,8,4,19]二氧杂二氮杂二十四环-1,7,16,22(4H,17H)-四酮