Die Kristallstruktur desN.N′ -Dimethyl-trans-perhydro-cyclopenta-[1.2-c:3.4-c′]dipyrrol-bis-methojodids, C13H26N2]J2

1H, 13C and 15N NMR spectroscopic charac

1H, 13C and 15N NMR spectroscopic characterization of unexpected degradation products of the nifedipine analogue bis(2-cyanoethyl) 2,6-dimethyl-4-(2-nitrophenyl)-1,4-dihydro-3,5-pyridinedicarboxylate

✍ Edith Gössnitzer; Klaus Görlitzer; Hans J. Baltrusch 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 108 KB

## Abstract In the course of saponification experiments with bis(2‐cyanoethyl) 2,6‐dimethyl‐4‐(2‐nitrophenyl)‐1,4‐dihydro‐3,5‐pyridinedicarboxylate (**1**), an analogue of the calcium channel blocker nifedipine, three unexpected degradation products were isolated. The compounds were identified as 3