乙酸酐 、
2-ethyl-5,6,7,8-tetrahydro-4-[(2'-(2-triphenylmethyl-2H-tetrazol-5-yl)biphenyl-4-yl)methoxy]-1,6-naphthyridine 、
三乙胺 在
氩 、
甲醇乙酸乙酯 作用下,
以
二氯甲烷 为溶剂,
反应 20.0h,
以to give 6-acetyl-2-ethyl-5,6,7,8-tetrahydro-4-[(2'-(2-triphenylmethyl-2H-tetrazol-5-yl)biphenyl-4-yl)methoxy]-1,6-naphthyridine (350 mg), m.p. 97°-98° C.的产率得到6-acetyl-2-ethyl-5,6,7,8-tetrahydro-4-[(2'-(2-triphenylmethyl-2H-tetrazol-5-yl)biphenyl-4-yl)methoxy]-1,6-naphthyridine