6-methyl-2,3-dihydropyrazolo[5,1-b][1,3]oxazole InChI=1/C6H8N2O/c1-5-4-6-8(7-5)2-3-9-6/h4H,2-3H2,1H pyrazolo[5,1-b]oxazole, 2,3-dihydro-6-methyl-