2,2,4-trimethyl-2H,6H-pyrimido[2,1-b][1,3]thiazine-7-carbaldehyde 2H,6H-pyrimido[2,1-b][1,3]thiazine-7-carboxaldehyde, 2,2,4-trimethyl- InChI=1/C11H14N2OS/c1-8-4-11(2,3)15-10-12-5-9(7-14)6-13(8)10/h4-5,7H,6H2,1-3H