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piperolactam a/piper

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ArticoliTest cliniciBrevetti
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Fertility control is a burning problem all over the world to regulate population overflow and maintain ecological balance. This study is an in-silico approach to explore a non-steroidal lead as contraceptive agent in order to avoid several contraindications generated by steroidal analogues.
Leishmaniasis is an epidemic in various countries, and the parasite Leishmania donovani is developing resistance against available drugs. In the present study the antileishmanial action of piperolactam A (PL), isolated after bioactivity guided fractionation from root extracts of Piper betle was

[Chemical constituents from Piper longum].

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OBJECTIVE To study the chemical constituents of Piper longum. METHODS The whole plant of air-dried P. longum was extracted with 95% EtOH. The EtOH extract was suspended in H2O and extracted with petroleum ether, CHCl3 and n-BuOH, successively. The compounds were isolated and purified by column

A new hydroxychavicol dimer from the roots of Piper betle.

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A new hydroxychavicol dimer, 2-(g'-hydroxychavicol)-hydroxychavicol (1), was isolated from the roots of Piper betle Linn. along with five known compounds, hydroxychavicol (2), aristololactam A II (3), aristololactam B II (4), piperolactam A (5) and cepharadione A (6). The structures of these

[Chemical constituents from twigs of Piper hancei].

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OBJECTIVE To investigate the chemical constituents from the twigs of Piper hancei. METHODS The chemical constituents were isolated and purified by means of chromatographic techniques including silica gel,Sephadex LH-20 and preparative RP-HPLC. Their structures were elucidated on the basis of
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