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Piperidone derivative from Dalbergia sympathetica

✍ Scribed by N. Shanmugam Nagarajan; R Priya Rao; C. Narayanan Manoj; M. Gopalakrishnan Sethuraman

Book ID
102530435
Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
88 KB
Volume
43
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

An alcoholic extract of Dalbergia sympathetica, on column chromatography, yielded a compound which analyzed for C~6~H~11~NO~3~ (M^+^ 145). The IR spectrum of the compound showed the presence of carbonyl and hydroxyl groups. PMR, ^13^C and DEPT NMR spectral studies of the compound showed the presence of one N‐methyl, two methine and two methylene groups. A quaternary carbon signal at δ 172.88 ppm was assigned to C‐2 carbonyl of the compound. From all the above observations and also from the HMQC 2D NMR spectrum, the compound was identified as 3, 6‐dihydroxy‐N‐methyl‐2‐piperidone. This is the first report of the natural occurrence of this compound from plant sources. Copyright © 2004 John Wiley & Sons, Ltd.

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Comments on ‘Piperidone derivative from Dalbergia sympathetica’
✍ Tammo Winkler 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 89 KB

## Abstract Alcoholic extraction of __Dalbergia sympathetica__ leaves yielded __N__‐methyl‐trans‐4‐hydroxy‐L‐proline and not 3,6‐dihydroxy‐__N__‐methyl‐2‐piperidone, as previously reported. This is shown by the identity of the ^1^H and ^13^C NMR data of the isolated compound with those of __N__‐met