L-valyl-N-{4-[(8S,11S,12R)-11-[(2S)-butan-2-yl]-12-(2-{(2S)-2-[(1R,2R)-1-methoxy-2-methyl-3-oxo-3-{[(1S)-2-phenyl-1-(1,3-thiazol-2-yl)ethyl]amino}propyl]pyrrolidin-1-yl}-2-oxoethyl)-5,5,10-trimethyl-3,6,9-trioxo-8-(propan-2-yl)-2,13-dioxa-4,7,10-triazatetradec-1-yl]phenyl}-N
5-carbamoyl-L-omithinamide trifluoroacetate 、
(2S)-2-(乙酰氨基)-4-[[(1,1-二甲基乙氧基)羰基]氨基]-丁酸 在
N,N-二异丙基乙胺 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
N,N-二甲基乙酰胺 为溶剂,
以18.7 mg的产率得到N-{(2S)-2-(acetylamino)-4-[(tert-butoxycarbonyl)amino]butanoyl}-L-valyl-N-{4-[(8S,11S,12R)-11-[(2S)-butan-2-yl]-12-(2-{(2S)-2-[(1R,2R)-1-methoxy-2-methyl-3-oxo-3-{[(1S)-2-phenyl-1-(1,3-thiazol-2-yl)ethyl]amino}propyl]pyrrolidin-1-yl}-2-oxoethyl)-5,5,10-trimethyl-3,6,9-trioxo-8-(propan-2-yl)-2,13-dioxa-4,7,10-triazatetradec-1-yl]phenyl}-N
5-carbamoyl-L-omithinamide