tert-butyl (6S,6aS)-6-[tert-butyl(dimethyl)silyl]oxy-8-[4-[[(2S)-2-[[(2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-3-methylbutanoyl]amino]propanoyl]amino]phenyl]-3-hydroxy-2-methoxy-11-oxo-6a,7-dihydro-6H-pyrrolo[2,1-c][1,4]benzodiazepine-5-carboxylate 、
(S)-8-((5-iodopentyl)oxy)-7-methoxy-1,2,3,11a-tetrahydro-5H-pyrrolo[2,1-c][1,4]benzodiazepine-5,11(10H)-dione 在
potassium carbonate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 0.75h,
以58%的产率得到tert-butyl (6S,6aS)-3-[5-[[(6aS)-2-methoxy-6,11-dioxo-6a,7,8,9-tetrahydro-5H-pyrrolo[2,1-c][1,4]benzodiazepin-3-yl]oxy]pentoxy]-6-[tert-butyl(dimethyl)silyl]oxy-8-[4-[[(2S)-2-[[(2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-3-methylbutanoyl]amino]propanoyl]amino]phenyl]-2-methoxy-11-oxo-6a,7-dihydro-6H-pyrrolo[2,1-c][1,4]benzodiazepine-5-carboxylate