Plectranthoic acid,acetylplectranthoic acid and plectranthadiol,three triterpenoids from Plectranthus rugosus |
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| Authors: | TK Razdan V Kachroo S Harkar GL Koul KL Dhart |
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| Institution: | 1. Regional Research Lab., Canal Road, Jammu, India |
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| Abstract: | Sitosterol and three new pentacyclic triterpenoids, plectranthoic acid, acetylplectranthoic acid and plectranthadiol, have been isolated from leaves of P. rugosus. From spectroscopic evidence and chemical behaviour the structure of plectranthoic acid was established as (19S)-3α-hydroxy-18α-urs-12-en-29β-oic acid and acetylplectranthoic acid is the 3α-acetyl derivative of this compound. Plectranthadiol is (19S)- 3α-hydroxy-18α-urs-12-en-29β-ol. |
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| Keywords: | Labiatae pentacyclic triterpenoids plectranthoic acid acetylplectranthoic acid plectranthadiol |
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