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Communication | Regular issue | Vol 31, No. 11, 1990, pp.1923-1926
Published online, 1st January, 1970
DOI: 10.3987/COM-90-5579
Asymmetric Transformation. IV. Formation of the Optically Active Crystals of 1,4-Benzodiazepinooxazoles

Yutaka Okada,* Toyonori Takebayashi, Seiichi Aoki, and Sadao Sato

*Process Development Laboratories, Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140, Japan

Abstract

Two 1,4-benzodiazepinooxazoles which afforded optically active crystals consisting of one enantiomer were newly found as additional example of the second-order asymmetric transformation which occurs between the enantiomers. All the optically active crystals of three 1,4-benzodiazepinooxazoles had the same molecular conformation and the same crystal structure.