(1R,2R)-2-(1-methyl-1H-pyrazol-4-yl)cyclopropane-1-carboxylic acid 、 ((6-((4bR,8aR)-2-amino-4b,7,7-trimethyl-4b,7,8,8a-tetrahydropyrano[3',4':4,5]pyrrolo[2,3-d]pyrimidin-9(5H)-yl)pyridin-2-yl)imino)dimethyl-λ6-sulfanone 在
4-二甲氨基吡啶 、
盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以29 %的产率得到(1R,2R)-N-((4bR,8aR)-9-(6-((dimethyl(oxo)-λ6-sulfaneylidene)amino)pyridin-2-yl)-4b,7,7-trimethyl-4b,5,7,8,8a,9-hexahydropyrano[3',4':4,5]pyrrolo[2,3-d]pyrimidin-2-yl)-2-(1-methyl-1H-pyrazol-4-yl)cyclopropane-1-carboxamide