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Molecular structure of Lantadene-B&C, triterpenoids ofantana camara, red variety: Lantadene-B, 22β-angeloyloxy-3-oxoolean-12-en-28-oic acid; Lantadene-C, 22 β-(S)-2′-methyl butanoyloxy-3-oxoolean-12-en-28-oic acid

✍ Scribed by M. Nethaji; C. Rufes; C. Sadasivan; Vasantha Pattabhi; O. P. Sharma


Book ID
105107944
Publisher
Springer
Year
1993
Tongue
English
Weight
250 KB
Volume
23
Category
Article
ISSN
1572-8854

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Spectrophotometric determination of lant
✍ O.P. Sharma; H.P.S. Makkar; R.K. Dawra 📂 Article 📅 1983 🏛 Elsevier Science 🌐 English ⚖ 336 KB

The formation of a blue chromogen between sodium borohydride-treated lantadene A (22@angeloyloxy-3-oxoolean-12-en-2%oic acid) and acetic anhydride-sulfuric acid (9: 1) formed the basis of a spectrophotometric method for its quantitation. The chromogen had a broad absorption maximum (X,,) at 630-645