phenylmethyl (3S)-3-(4-{4'-[2-((2S)-1-{N-[(methyloxy)carbonyl]-L-valyl}-2-pyrrolidinyl)-1H-imidazol-4-yl]-4-biphenylyl}-1H-imidazol-2-yl)-6,10-dioxa-2-azaspiro[4.5]decane-2-carboxylate 在
钯 methyl [(1S)-1-({(2S)-2-[4-(4'-{2-[(3S)-6,10-dioxa-2-azaspiro[4.5]dec-3-yl]-1H-imidazol-4-yl}-4-biphenylyl)-1H-imidazol-2-yl]-1-pyrrolidinyl}carbonyl)-2-methylpropyl]carbamate 作用下,
以
乙醇 为溶剂,
反应 20.0h,
以to give methyl [(1S)-1-({(2S)-2-[4-(4′-{2-[(3S)-6,10-dioxa-2-azaspiro[4.5]dec-3-yl]-1H-imidazol-4-yl}-4-biphenylyl)-1H-imidazol-2-yl]-1-pyrrolidinyl}carbonyl)-2-methylpropyl]carbamate (Intermediate 19)的产率得到methyl [(1S)-1-({(2S)-2-[4-(4'-{2-[(3S)-6,10-dioxa-2-azaspiro[4.5]dec-3-yl]-1H-imidazol-4-yl}-4-biphenylyl)-1H-imidazol-2-yl]-1-pyrrolidinyl}carbonyl)-2-methylpropyl]carbamate