(1R,18R,20R,24S,27S,28S)-7-methoxy-28-methyl-24-(1-methylcyclopentyl)-22,25-dioxo-2,21-dioxa-4,11,23,26-tetrazapentacyclo[24.2.1.03,12.05,10.018,20]nonacosa-3,5(10),6,8,11-pentaene-27-carboxylic acid 、
(1R,2R)-1-氨基-2-(二氟甲基)-N-[(1-甲基环丙基)磺酰基]环丙烷甲酰胺盐酸盐 、
三氟乙酸 在
4-二甲氨基吡啶 、 O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate 、
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 、
水 、
乙腈 为溶剂,
反应 14.0h,
以74 mg的产率得到(1aR,5S,8S,9S,10R,22aR)-N-[(1R,2R)-2-(difluoromethyl)-1-{[(1-methylcyclopropyl)sulfonyl]carbamoyl}cyclopropyl]-14-methoxy-9-methyl-5-(1-methylcyclopentyl)-3,6-dioxo-1,1a,3,4,5,6,9,10,18,19,20,21,22,22a-tetradecahydro-8H-7,10-methanocyclopropa[18,19][1,10,3,6]dioxadiazacyclononadecino[1 1,12-b]quinoxaline-8-carboxamide trifluoroacetate