反应详情

Employing the procedure substantially as described in Example 1, Step E, but substituting for the sodium methoxide used therein, an equimolecular amount of sodium ethoxide, sodium n-propoxide, sodium isopropoxide, sodium n-butoxide, sodium sec.-butoxide, or sodium t-butoxide, there is produced respectively (-)-3-ethoxycyproheptadine, (-)-3-n-propoxycyproheptadine, (-)-3-isopropoxycyproheptadine, (-)-3-n-butoxycyproheptadine, (-)-3-sec.-butoxycyproheptadine, or (-)-3-t-butoxycyproheptadine.