T. Yoon, S. Yoo, W. Shin
Aug 15, 1998
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Journal
Acta Crystallographica Section C-crystal Structure Communications
Abstract
The benzopyran-based title compound, C 15 H 20 N 2 O 7 , is a potential potassium-channel opener with cardiovascular therapeutic activities. The 2-dimethoxymethyl and 3-hydroxyl groups are in axial positions while the 4-acetamide group is in a pseudo-equatorial position. The 4-acetamide group is nearly perpendicular to the benzopyran plane. There are two intermolecular hydrogen bonds; one between the hydroxyl O and acetamide O atoms [2.725 (5) A], and the other between the acetamide N and methoxy O atoms [3.139(5) A].