Synthesis of enantiomerically pure 4-aryl-3,4-dihydropyrimidin-2(1 H )-ones via enzymatic resolution: preparation of the antihypertensive agent ( R )-SQ 32926 †Synthesis and reactions of Biginelli compounds, part 20; for part 19, see: Kappe, C. O.; Shishkin, O. V.; Uray, G.; Verdino, P. Tetrahedron 2000, 56, 1859–1862. †

Autor: Kurt Faber, Ulrike T. Strauss, Petra Verdino, C. Oliver Kappe, Barbara Schnell
Rok vydání: 2000
Předmět:
Zdroj: Tetrahedron: Asymmetry. 11:1449-1453
ISSN: 0957-4166
DOI: 10.1016/s0957-4166(00)00081-1
Popis: A practical and short synthesis of the enantiomerically pure dihydropyrimidone antihypertensive agent (R)-SQ 32926 has been developed. The key step in the synthesis is the enzymatic resolution of an N3-acetoxymethyl-activated dihydropyrimidone precursor by Thermomyces lanuginosus lipase. The absolute configuration of (R)-SQ 32926 was confirmed by circular dichroism spectroscopy.
Databáze: OpenAIRE