ethyl ((S)-((((2R,5R)-5-(6-amino-9H-purin-9-yl)-4-fluoro-2,5-dihydrofuran-2-yl)oxy)methyl)(phenoxy)phosphoryl)-L-alaninate 、
柠檬酸 以
乙腈 为溶剂,
以84%的产率得到citrate salt ethyl N-[(S)({[(2R,5R)-5-(6-amino-9H-purin-9-yl)-4-fluoro-2,5-dihydrofuran-2-yl]oxy}methyl)phenoxyphosphinoyI]-L-alaninate