Acta Cryst. (2012). E68, o3421-o3422
[ doi:10.1107/S1600536812047617 ]

(1R,3R,4R,6S)-4-(7-Methoxy-2-oxo-2H-chromen-6-yl)-1-methyl-3,6-dioxabicyclo[3.1.0]hexan-2-yl acetate

W. Phakhodee, S. Laphookhieo, T. J. Prior and A. Rujiwatra

Abstract: In the title compound, C₁₇H₁₆O₇, which was isolated from the leaves of Micromelum integerrimum, the furan ring adopts an envelope conformation with the O atom as the flap. An intramolecular C-HO hydrogen bond occurs. The carbonyl O atom is disordered in a 0.57 (8):0.43 (8) ratio. In the crystal, molecules are linked by weak C-HO hydrogen bonds into a C(10) chain along [010].

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