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Coagulansins A (1) and B (2), two new withanolides, were isolated from the CHCl3‐soluble fraction of Withania coagulans Dunal, along with two known withanolides, coagulin R and withanolide P. Their structures were assigned by means of 1H‐ and 13C‐NMR spectra, DEPT, and 1H,1H‐COSY, NOESY, HMQC, and HMBC experiments.
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Jahan et al. (2010) studied this question.
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