1-((2,3-Dihydro-5-oxo-5H-thiazolo(3,2-a)pyrimidin-6-yl)carbonyl)pyrrolidine 93501-42-9 BRN 4501916 Pyrrolidine, 1-((2,3-dihydro-5-oxo-5H-thiazolo(3,2-a)pyrimidin-6-yl)carbonyl)-