、 、
8-(naphth-1-yl)-4-oxo-4H-quinolizine-3-carboxylic acid 、
8-(benzo[b]furyl)-4-oxo-4H-quinolizine-3-carboxylic acid 、 、
镁 在
Mg2+ 、 amino 作用下,
以The presence of the amino group at the 1-position gave a hypsochromic shift of 117 nm with respect to 4-oxo-4H-quinolizine-3-carboxylic acid (1a)的产率得到4-oxo-4H-quinolizine-3-carboxylic acid