1,5-diazabicyclo[3.1.0]hexane, 3,3-dimethyl- 3,3-dimethyl-1,5-diazabicyclo[3.1.0]hexane InChI=1/C6H12N2/c1-6(2)3-7-5-8(7)4-6/h3-5H2,1-2H