反应详情

One (1.00) compound obtained in Example 3A was dissolved in 100 ml of methanol followed by addition of hydrogen chloride gas-saturated ethereal solution of 5 times as much by volume under ice-cooling. The solvent was then evaporated off to provide 1.07 g of the title compound as yellow powders. m.p. 258-261° C. (decomp.)

1. temperaturecooling
2. customThe solvent was then evaporated off