Category:TP3O
From Metabolomics.JP
(Difference between revisions)
(New page: ===Bufanolides (C24)=== {{Twocolumn| The backbone of toad skin secretions and the sea onion or squill (''Scilla maritima'') with a δ-lactone ring at C-17. As for cardenolides, 14&bet...) |
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| − | + | ==Bufanolides (C24)== | |
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| − | + | Bufadienolides are found in toad skin secretions, sea onion or squill (''Scilla maritima''), and more recently, [[:Category:Crassulaceae|Crassulaceae]] in South Africa and Australia. | |
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| + | The backbone is a δ-lactone ring at C-17. | ||
As for cardenolides, 14β, 17β, and 20''R''-configurations are assumed (the rings C/D are ''cis''). They naturally occur as glycosides or conjugates of suberylarginine. | As for cardenolides, 14β, 17β, and 20''R''-configurations are assumed (the rings C/D are ''cis''). They naturally occur as glycosides or conjugates of suberylarginine. | ||
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Latest revision as of 15:25, 3 August 2010
[edit] Bufanolides (C24)
Bufadienolides are found in toad skin secretions, sea onion or squill (Scilla maritima), and more recently, Crassulaceae in South Africa and Australia. The backbone is a δ-lactone ring at C-17. As for cardenolides, 14β, 17β, and 20R-configurations are assumed (the rings C/D are cis). They naturally occur as glycosides or conjugates of suberylarginine.
[edit] Gorgostane (C30)
Gorgostanes occur in marine organisms. Its backbone is ergostane with an additional metyl group at C-23 and ana methylene bridge between C-22 and C-23.
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