Tert-butyl 3-(2-aminoethyl)-2,5-dihydropyrrole-1-carboxylate 、 [(1S,5S,6R,9S,12R,14R,16S)-16-acetyloxy-9-(2-methylpropyl)-3,7,10-trioxo-2,8-dioxa-4,11-diazatetracyclo[10.3.1.01,5.06,11]hexadecan-14-yl] acetate 以
二氯甲烷 为溶剂,
反应 12.0h,
以85%的产率得到tert-butyl 3-[2-[[(1S,5S,6R,8R,10R,12S)-10,12-diacetyloxy-7-[(2S)-2-hydroxy-4-methylpentanoyl]-3-oxo-2-oxa-4,7-diazatricyclo[6.3.1.01,5]dodecane-6-carbonyl]amino]ethyl]-2,5-dihydropyrrole-1-carboxylate