environmentally friendly reaction conditions. Keywords: Dihydropyrimidinone, Dihydropyrimidinthione, Cobalt(II)Nitrate, Solvent-free, One-potsynthesis INTRODUCTION Synthesis of 3,4-dihydropyrimidine-2(1H)-Ones (DHPMs) through one-pot reaction of aromatic aldehyde, urea and ethyl acetoacetate in acid ethanol solution was initiated by Biginelli in 1893 1 . These compounds occupied an important place in medicinal
3,4-Dihydropyrimidin-2(1H)-Ones: Fast Synthesis Under Microwave Irradiation in Solvent Free Conditions
作者:Hélio A. Stefani、Paula M. Gatti
DOI:10.1080/00397910008087395
日期:2000.1
Abstract Microwaveirradiation has been used to accelerate the synthesis of the Biginelli compounds, in one-pot reaction between β-keto esters, aryl aldehydes, and urea. These solvent-free reactions show that it is possible to prepare these compounds in a short time reaction and with good yield and easily isolable.
Dihydropyrimidones: As novel class of β-glucuronidase inhibitors
作者:Farman Ali、Khalid Mohammed Khan、Uzma Salar、Sarosh Iqbal、Muhammad Taha、Nor Hadiani Ismail、Shahnaz Perveen、Abdul Wadood、Mehreen Ghufran、Basharat Ali
DOI:10.1016/j.bmc.2016.06.002
日期:2016.8
Dihydropyrimidones 1–37 were synthesized via a ‘one-pot’ three component reaction according to well-known Biginelli reaction by utilizing Cu(NO3)2·3H2O as catalyst, and screened for their in vitro β-glucuronidase inhibitory activity. It is worth mentioning that amongst the active molecules, compounds 8 (IC50 = 28.16 ± .056 μM), 9 (IC50 = 18.16 ± 0.41 μM), 10 (IC50 = 22.14 ± 0.43 μM), 13 (IC50 = 34.16 ± 0