Solid phase synthesis of structurally diverse tetra substituted pyrimidines for potential use in combinatorial

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Microwave-Assisted Preparation of 1-Aryl-1H-pyrazole-5-amines
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Published on: June 23, 2019

P M S Chauhan1, Arun Kumar

  • 1Medicinal Chemistry Division, Central Drug Research Institute, Lucknow-226001, U.P., Lucknow, India. Premsc58@hotmail.com

Combinatorial Chemistry & High Throughput Screening
|February 28, 2002
PubMed

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Heterocyclic aromatic compounds are cyclic compounds that are aromatic and have one or more heteroatoms—atoms other than carbon, in the ring. Depending upon the number of atoms present in the ring, they can be either five or six-membered. Examples of five-membered heterocyclic aromatic compounds include pyrrole, furan, thiophene, and imidazole. Pyrrole consists of one nitrogen atom having one lone pair of electrons. Furan and thiophene have one oxygen and one sulfur heteroatom, respectively.