Three new tetranortriterpenoids from neem seed oil
DSpace at IIT Bombay
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Title |
Three new tetranortriterpenoids from neem seed oil
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Creator |
HALLUR, G
SIVRAMAKRISHNAN, A BHAT, SV |
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Subject |
indica juss,a. meliaceae
azadirachta-indica |
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Description |
Three new tetranortriterpenoids, 1alpha,2alpha epoxy 17beta hydroxyazadiradione (1), 1alpha,2alpha epoxymmolicinol (2), and 7 deacetylnimolicinol (3), have been isolated from a methanol extract of neem oil (Azadirachta indica, seed oil) along with the known compounds epoxyazadiradione, 17beta hydroxyazadiradione, gedunin, nimbin, and nimolicinol (4) Spectral studies and chemical transformations were used to establish the structure of compounds 1-3 The characterization of the epoxides 1 and 2 in neem oil is of biogenetic significance, as they may be considered as intermediates between A ring enones and 1,3 diols among the A indica tetranortriterpenoids.
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Publisher |
AMER CHEMICAL SOC
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Date |
2011-07-15T02:55:09Z
2011-12-26T12:49:12Z 2011-12-27T05:35:00Z 2011-07-15T02:55:09Z 2011-12-26T12:49:12Z 2011-12-27T05:35:00Z 2002 |
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Type |
Article
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Identifier |
JOURNAL OF NATURAL PRODUCTS, 65(8), 1177-1179
0163-3864 http://dx.doi.org/10.1021/np0105174 http://dspace.library.iitb.ac.in/xmlui/handle/10054/4135 http://hdl.handle.net/10054/4135 |
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Language |
en
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