Pseudopolymorphs of chelidamic acid and its dimethyl ester

M Tutughamiarso, T Pisternick, E Egert

文献索引：Tutughamiarso, Maya; Pisternick, Thorsten; Egert, Ernst Acta Crystallographica Section C: Crystal Structure Communications, 2012 , vol. 68, # 9 p. o344-o350

全文：HTML全文

被引用次数: 5

摘要

Different tautomeric and zwitterionic forms of chelidamic acid (4-hydroxypyridine-2, 6- dicarboxylic acid) are present in the crystal structures of chelidamic acid methanol monosolvate, C7H5NO5· CH4O,(Ia), dimethylammonium chelidamate (dimethylammonium 6-carboxy-4-hydroxypyridine-2-carboxylate), C2H8N+· C7H4NO5−,(Ib), and chelidamic acid dimethyl sulfoxide monosolvate, C7H5NO5· C2H6OS,(Ic). While the zwitterionic ...