Phytochemistry p. 409 - 412 (1982)
Update date:2022-07-29
Topics:
Razdan, T. K.
Kachroo, V.
Harkar, S.
Koul, G. L.
Dhar, K. L.
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. - Key Word index - P. rugosus; Labiatae; pentacyclic triterpenoids; plectranthoic acid; acetylplectranthoic acid; plectranthadiol.
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Doi:10.1515/znb-1982-0411
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