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 inJournal of natural products (Washington, D.C.) Vol. 59; no. 11; pp. 1029 - 1034
Main Authors He, Kan, Shi, Guoen, Zhao, Geng-Xian, Zeng, Lu, Ye, Qing, Schwedler, Jon T, Wood, Karl V, McLaughlin, Jerry L
Format Journal Article
LanguageEnglish
Published WASHINGTON American Chemical Society 01.11.1996
Amer Chemical Soc
American Society of Pharmacognosy
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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.
Bibliography:F60
Q60
9706515
Abstract published in Advance ACS Abstracts, October 15, 1996.
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NIH RePORTER
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content type line 23
ISSN:0163-3864
1520-6025
DOI:10.1021/np9605145