Parallel synthesis of bis-heterocyclic isoxazolylmethyl- And isoxazolinylmethylpyrazoles

Liping Meng, Beth A. Lorsbach, Thomas C. Sparks, James C. Fettinger, Mark J. Kurth

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


The solution-phase parallel synthesis of a 136-member library of isoxazol(in)e-CH2-pyrazoles is described, X-ray crystallographic structure determination verified the regioselectivities of the N-alkylation and nitrile oxide 1,3-dipolar cycloaddition steps. The construction of these pharmaceutically relevant heterocycles on solid support under microwave irradiation is also demonstrated. The resulting library of drug-like compounds has been added to the National Institutes of Health repository (∼10 mg of each with ≥90% purity) for pilot-scale biomedical studies with bioassay data available at the National. Center for Biotechnology Information PubChem database. A subset of these compounds has been broadly screened by Dow AgroSciences for herbicidal, fungicidal, and insecticidal activity.

Original languageEnglish (US)
Pages (from-to)129-136
Number of pages8
JournalJournal of Combinatorial Chemistry
Issue number1
StatePublished - Jan 11 2010

ASJC Scopus subject areas

  • Chemistry(all)


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