(S)-3-amino-N-cyclohexyl-5-methylhexanamide hydrochloride 、
2',1':1,2:1",2":3,4-dibenzcyclohepta-1,3-diene-6-tert-butyloxycarbonylamino-6-carboxylic acid 在
N,N-二异丙基乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
四氢呋喃 、
二氯甲烷 为溶剂,
反应 18.0h,
以75%的产率得到tert-butyl (S)-(6-((1-(cyclohexylamino)-5-methyl-1-oxohexan-3-yl)carbamoyl)-6,7-dihydro-5H-dibenzo[a,c][7]annulen-6-yl)carbamate