(2S)-2-amino-N-[(1R)-1-(3,5-dihydroxy-4-methoxyphenyl)-2-(methylamino)-2-oxoethyl]-2-(3-hydroxy-5-methoxy-4-methylphenyl)acetamide 、 alkaline earth salt of/the/ methylsulfuric acid 在
胸苷酸 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 、
caesium carbonate 作用下,
以
N,N-二甲基甲酰胺 、
乙腈 为溶剂,
反应 50.0h,
生成 tert-butyl N-[(8R,11S,14R,15R)-15-[tert-butyl(dimethyl)silyl]oxy-5-hydroxy-11-(3-hydroxy-5-methoxy-4-methylphenyl)-4-methoxy-8-(methylcarbamoyl)-10,13-dioxo-2-oxa-9,12-diazatricyclo[14.2.2.13,7]henicosa-1(18),3(21),4,6,16,19-hexaen-14-yl]carbamate