| Literature DB >> 490172 |
J M Cassady, N Ojima, C Chang, J L McLaughlin.
Abstract
Extracts of Micromelum integerrimum (Buch.-Ham. ex Coleb.) M. Roem. were fractionated based on in vivo activity in mice in the P-388 lymphocytic leukemia system. Activity in ethanol extracts was concentrated in the chloroform partition fraction, which was further resolved by chromatography on silica gel. The known coumarins, micromelin and scopoletin, were crystallized from the active fractions and demonstrated to have antitumor activities. Micromelin was converted to the corresponding butenolide (deoxymicromelin) which was inactive in the 9KB assay.Entities:
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Year: 1979 PMID: 490172 DOI: 10.1021/np50003a005
Source DB: PubMed Journal: J Nat Prod ISSN: 0163-3864 Impact factor: 4.050