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  • Title: Two new ergostane-type steroidal lactones from Withania coagulans.
    Author: Atta-ur-Rahman A, Choudhary MI, Qureshi S, Gul W, Yousaf M.
    Journal: J Nat Prod; 1998 Jun 26; 61(6):812-4. PubMed ID: 9644072.
    Abstract:
    Two new withanolides (steroidal lactones) named coagulin F [27-hydroxy-14,20-epoxy-1-oxo-(22R)-witha-3,5,24-trienolide] (1) and coagulin G [17beta,27-dihydroxy-14,20-epoxy-1-oxo-(22R)-witha-2,5, 24-trienolide] (2) were isolated from the whole plant of Withania coagulans, and their structures were deduced by spectral analysis.
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