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Communication | Regular issue | Vol 12, No. 11, 1979, pp.1423-1426
Published online, 1st January, 1970
DOI: 10.3987/R-1979-11-1423
Establishment of the Structures of Azatropolones and Their Rearrangement Products by X-Ray Analysis

Yoshisuke Tsuda,* Miyuki Kaneda, Takehiro Sano,* Yoshie Horiguchi, and Yoichi Iitaka

*Faculty of Pharmaceutical Scicences, Kanazawa University, 13-1 Takara-machi, Kanazawa 920-0934, Japan

Abstract

The structure of the azatropolone methyl ether [7-(4’-bromophenyl)-4-ethoxycarbonyl-3-methoxy-6-phenyl-2H-azepin-2-one] was determined by X-ray analysis using the heavy atom method. The result indicated that the azatropolone nucleus is not planar and has a chirality. The structures of solvolytic rearrangement products of azatropolones were also established by X-ray analyses as pyridine-2-carboxylates.