Crystal and Molecular Structures of Two AZA-Heterocyclic Derivatives of 6-Thio-D-Galactopyranose

Autor: Patrick Rollin, Anne Imberty, Stephanie Cassel, Serge Pérez, C. Lorin, Nadine Mouhous-Riou
Rok vydání: 1998
Předmět:
Zdroj: Scopus-Elsevier
ISSN: 1532-2327
0732-8303
Popis: The conformations of crystalline 6-C-(benzothiazol-2-yl)sulfonyl-6-deoxy-1,2:3,4-di-O-isopropylidene-α-D-galactopyranose (1) and S R-6-deoxy-1,2:3,4-di-O-isopropylidene-6-C-(2-pyridyl)sulfinyl-α-D-galactopyranose (2) have been determined by X-ray diffraction. The crystal structure of 1 belongs to the monoclinic P21 space group with a = 10.779(4), b = 10.431(6), c = 10.258(6) A) and β =113.51(2)°C. The crystal structure of 2 belongs to the tetragonal space P41212 with a = 10.652(2) and c = 33.037(4) A. The molecular features of these two compounds are compared with those of the related 6-S-(benzoxazol-2-yl)-1,2:3,4-di-O-isopropylidene-6-thio-α-D-galactopyranose (3). 1. Associated with University Joseph Fourier, Grenoble France.
Databáze: OpenAIRE