1-oxa-2,8-diazaspiro[4.5]dec-2-ene, 3,8-dimethyl- 3,8-dimethyl-1-oxa-2,8-diazaspiro[4.5]dec-2-ene InChI=1/C9H16N2O/c1-8-7-9(12-10-8)3-5-11(2)6-4-9/h3-7H2,1-2H