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  • Title: New steroidal alkaloids from Sarcococca saligna.
    Author: Atta-ur-Rahman, Choudhary MI, Khan MR, Anjum S, Farooq A, Iqbal MZ.
    Journal: J Nat Prod; 2000 Oct; 63(10):1364-8. PubMed ID: 11076553.
    Abstract:
    Five new pregnane-type steroidal alkaloids (1-5) have been isolated from Sarcococca saligna. A combination of UV, IR, MS, and 1D and 2D NMR spectroscopic studies established their structures as salignarine A [(20S)-2beta-hydroxy-4beta-acetoxy-5alpha, 6alpha-epoxy-20-(dimethylamino)-3beta-(tigloylamino)pregnane ] (1), salignarine B [(20S)-2beta-hydroxy-20-(dimethylamino)-3beta-(tigloylamino) -pregn-5- ene] (2), salignarine C [(20S)-2beta-hydroxy-20-(dimethylamino)-3beta-(senecioylamino++ +)-pregn- 5-ene] (3), salignarine D [(20S)-20-(dimethylamino)-3beta-(senecioylamino)-5alpha-preg n-16-ene] (4), and salignarine E [(20S)-20-(dimethylamino)-3beta-(tigloylamino)-pregn-4-ene] (5), respectively.
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