cyclopentyl (2S)-2-[(tert-butoxycarbonyl)amino]-4-{6-[(4-{[(7R)-8-cyclopentyl-7-ethyl-5-methyl-6-oxo-5,6,7,8-tetrahydropteridin-2-yl]amino}-3-methoxybenzoyl)amino]-3-azabicyclo[3.1.0]hex-3-yl}butanoate 在
二氯甲烷 、
disodium;carbonate 、
magnesium sulfate 作用下,
以
盐酸1,4-二恶烷 为溶剂,
反应 61.83h,
以to afford the title example as a clear oil (23 mg, 12% yield)的产率得到cyclopentyl (2S)-2-amino-4-{6-[(4-{[(7R)-8-cyclopentyl-7-ethyl-5-methyl-6-oxo-5,6,7,8-tetrahydropteridin-2-yl]amino}-3-methoxybenzoyl)amino]-3-azabicyclo[3.1.0]hex-3-yl}butanoate