 These compounds have the potential to act as antagonists at central benzodiazepine receptors (BZRs) in "Xenopus laevis" oocytes.The Gould‐Jacobs reaction has also been used both conventionally with condensation steps and acyclic intermediated and with single step microwave irradiation to synthesize ethyl 4‐oxo‐8,10‐substituted‐4,8‐dihydropyrimido[1,2‐c]pyrrolo[3,2‐e]pyrimidine‐3‐carboxylates.Francisco del Carmen Carvajal Municipality

The Francisco del Carmen Carvajal Municipality is one of the 21 municipalities (municipios) that makes up the eastern Venezuelan state of Anzoátegui and, according to the 2011 census by the National Institute of Statistics of Venezuela, the municipality has a population of 14,653.