反应详情

Prepared as described for 4-hydroxy-6-(2-phenethyl)pyridazin-3(2H)-one (Example 1) from 3,4-bis(benzyloxy)-6-(cyclopropylethynyl)pyridazine (Intermediate 18) except that the reaction was carried out in ethanol. The resulting crude product was purified by preparative HPLC under acidic conditions to afford 6-(2-cyclopropylethyl)-4-hydroxypyridazin-3(2H)-one as a cream solid (14% yield).

1. customPrepared
2. customThe resulting crude product was purified by preparative HPLC under acidic conditions