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. 2002 Dec;61(8):923-6.
doi: 10.1016/s0031-9422(02)00474-0.

Alkylated benzoquinones from Iris kumaonensis

Umar Mahmood  1 , Vijay K Kaul, Leopold Jirovetz
Affiliations

Alkylated benzoquinones from Iris kumaonensis

Umar Mahmood et al. Phytochemistry. 2002 Dec.

Abstract

Six novel alkylated p-Benzoquinones irisoquin (A-F) (1-2, 4-7) together with a known cytotoxic quinone, irisoquin (3) along with three known isoflavones, tectoregenin, iristectorin and irigenin were isolated from the rhizomes of Iris kumaonensis and characterized. The structures of compounds 1-2, 4-7 were confirmed by extensive spectroscopic analysis, IR, MS, HRMS, GC, GC-MS, 1D (1H, 13C, NOE) and 2D (HMQC and HMBC) NMR and comparison with literature data of known compounds.

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