[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a member of the class of pyrrolines that is 1-pyrroline in which the two hydrogens at position 5 are replaced by methyl groups. It has a role as a spin trapping reagent."}, {"from": "gpt", "value": "[C][C][Branch1][#Branch1][C][C][C][=N][Ring1][Branch1][C]"}]