

4-(BOC-AMINO)-1Н-1,2,3-TRIAZOLE-5-CARBOXYLIC ACIDS – CONVENIENT REAGENTS FOR THE SYNTHESIS OF 1,4,6,7-TETRAHYDRO[1,2,3]TRIAZOLO[4,5-e][1,4]DIAZEPINE-5,8-DIONES

Abstract
The corresponding ethyl 5-carbonylglycinates were synthesized by condensation of 4-(Boc-amino)-1,2,3-triazole-5-carboxylic acids with ethyl glycinate hydrochloride. They were intramolecularly cyclized with the selective formation of 1,4,6,7-tetrahydro[1,2,3]triazolo[4,5-e][1,4]diazepine-5,8-diones.
Authors: Natalia А. Syrota*, Sergiy V. Kemskiy, Andriy V. Bol'but, Mikhailo V. Vovk
Keywords
4-amino-1,2,3-triazole-5-carboxylic acids; ethyl [4-(Boc-amino)-1H-1,2,3-triazole-5-carbonyl]glycinate; [1,2,3]triazolo[4,5-e][1,4]diazepine; intramolecular cyclization
Latvian Institute of Organic Synthesis - Aizkraukles iela, 21, Riga, LV-1006, Latvia - hgs@osi.lv