Three New Adjacent Bis-tetrahydrofuran Acetogenins with Four Hydroxyl Groups from Asimina triloba
Three new adjacent bis-tetrahydrofuran ring Annonaceous acetogenins with four hydroxy groups, bullatetrocin (1), 10-hydroxyasimicin (2), and 10-hydroxytrilobacin (3), were isolated by activity-directed fractionation from the stem bark of Asimina triloba. Their structures were established on the basi...
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Published in | Journal of natural products (Washington, D.C.) Vol. 59; no. 11; pp. 1029 - 1034 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
WASHINGTON
American Chemical Society
01.11.1996
Amer Chemical Soc American Society of Pharmacognosy |
Subjects | |
Online Access | Get full text |
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Summary: | Three new adjacent bis-tetrahydrofuran ring Annonaceous acetogenins with four hydroxy groups, bullatetrocin (1), 10-hydroxyasimicin (2), and 10-hydroxytrilobacin (3), were isolated by activity-directed fractionation from the stem bark of Asimina triloba. Their structures were established on the basis of chemical and spectral evidence. The absolute stereochemistry at the C-10 hydroxy position was determined by converting 2 and 3 to their ketolactone isomers, 2,4-cis/trans 10-hydroxyasimicinones and 2,4-cis/trans 10-hydroxytrilobacinones, respectively. The bioactivities of the new compounds against brine shrimp larvae and six human solid-tumor cell lines are reported, and structure−activity relationships between trihydroxylated and tetrahydroxylated acetogenins are discussed. In addition to 1−3, gigantetrocin A, 2,4-cis/trans-gigantetrocin A-ones, annonacin, and annonacin A were also isolated for the first time from this species. |
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Bibliography: | F60 Q60 9706515 Abstract published in Advance ACS Abstracts, October 15, 1996. ark:/67375/TPS-PZLP073J-9 istex:648EA260AF5A410AEA320F02322FE9F6BF951560 Medline NIH RePORTER ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0163-3864 1520-6025 |
DOI: | 10.1021/np9605145 |