The antimicrobial activity and some constituents of Schinus lentiscifolius are reported for the first time. The results of the present study provide scientific basis for the popular use of Schinus lentiscifolius for a number of different health problems.
Lanostane-Type Triterpenes from the Fungal Endophyte Scleroderma UFSMSc1 (Persoon) Fries. -Two lanostane triterpenoids, sclerodol A (Ia) and B (Ib), are isolated from the culture of Eucalyptus grandis derived from the endophyte Scleroderma UFSMSc1 (Persoon) Fries. They show promising anticandidal activities. -(MORANDINI, L. M.; NETO, A. T.; PEDROSO, M.; ANTONIOLLI, Z. I.; BURROW, R. A.; BORTOLUZZI, A. J.; MOSTARDEIRO, M. A.; DA SILVA, U. F.; DALCOL, I. I.; MOREL*, A. F.; Bioorg. Med. Chem. Lett. 26 (2016) 4, 1173-1176, http://dx.
The present study reports the determination of absolute stereochemistry of clemateol, an irregular monoterpene containing an epoxy group, which was isolated as the main component from the essential oil of Calea clematidea (Asteraceae). Its absolute stereochemistry was unambiguously established on the basis of detailed nuclear magnetic resonance (NMR) spectroscopic evidence ( 3 J H-H analysis, derivatization as Mosher's esters and nuclear Overhauser effect (NOESY) spectrum) and also by resonance scattering effects in the single crystal X-ray diffraction (XRD) resolution of its (R)-mandelic acid ester derivative.
Five sesquiterpenoid oxides, named nectandrene A, B, C, D, and E, were isolated from the essential oil of the leaves of Nectandra megapotamica. Their structures were elucidated by spectroscopic analysis, and the relative configurations were proposed by their nuclear Overhauser effect (NOESY) spectrum. Three of these isolated compounds displayed significant antimicrobial activity; the compound most active had minimal inhibitory concentration (MIC) values between 3.12 and 25.0 μg mL -1 against some tested bacteria, and antifungal activity with MIC values between 12.5 and 25.0 μg mL -1 .
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