3-({[cis-4-(2,4-Dihydroxyphenyl)cyclohexyl]amino}sulfonyl)benzoic acid 在
i-Pr
2NEt 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以29%的产率得到Benzyl (2S)-2-{[3-({[cis-4-(2,4-dihydroxyphenyl)cyclohexyl]amino}sulfonyl) benzoyl]amino}-3-phenylpropanoate