N-[2-(3-{(2R,3R,4R,5R)-5-[Bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-4-hydroxy-3-methoxy-tetrahydro-furan-2-yl}-2-oxo-2,9-dihydro-3H-10-oxa-1,3,9-triaza-anthracen-8-yloxy)-ethyl]-2,2,2-trifluoro-acetamide 、 alkaline earth salt of/the/ methylsulfuric acid 在
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
以85%的产率得到Diisopropyl-phosphoramidous acid (2R,3R,4R,5R)-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-4-methoxy-5-{2-oxo-8-[2-(2,2,2-trifluoro-acetylamino)-ethoxy]-2,9-dihydro-10-oxa-1,3,9-triaza-anthracen-3-yl}-tetrahydro-furan-3-yl ester 2-cyano-ethyl ester