Formation of substituted 6-hydroxy-5-oxo-5,6-dihydrobenzo[c][2,7]naphthyridine upon photochemical transformation of nifedipine
作者:V. P. Krivopalov、V. F. Sedova、O. P. Shkurko
DOI:10.1023/b:rucb.0000012367.57360.18
日期:2003.11
Long-term exposure of nifedipine to daylight in ethanol gives 2,2'-bis[3,5-bis(methoxycarbonyl)-2,6-dimethylpyridin-4-yl]azoxybenzene and 6-hydroxy-1-methoxycarbonyl-2,4-dimetliyl-5-oxo-5,6-dihydrobenzo[c][2,7]naphthyridine as the major products.