Two amides from piper Brachystachyum
✍ Scribed by Avijit Banerji; Chittaranjan Das
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 322 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0031-9422
No coin nor oath required. For personal study only.
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## Abstract Two new cyclobutanoid amides, piperarborenine A (=1,1′‐{[(1__α__,2__α__,3__β__,4__β__)‐2,4‐bis(3,4‐dimethoxyphenyl)cyclobutane‐1,3‐diyl]dicarbonyl}bis[5,6‐dihydropyridin‐2(1__H__)‐one]; **1**) and piperarborenine B (=1,1′‐{[(1__α__,2__α__,3__β__,4__β__)‐2‐(3,4‐dimethoxyphenyl)‐4‐(3,4,5‐
## Abstract Three new amides, pipgulzarine (**1**), pipzorine (**2**), and piptahsine (**3**), have been isolated from the dried seeds of __Piper nigrum__ Linn. along with nine known constituents: (2__E__,4__E__,8__Z__)‐__N__‐(isobutyl)eicosatrienamide, pellitorine, pipercide, piperine, stigmastano