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