英文别名4-methylsulfonylspiro[1,3,5,11-tetrazatricyclo[7.4.0.02,7]trideca-2,4,6,8-tetraene-13,1'-cyclohexane]-10-one; Trilaciclib Impurity 3; 7',8'-Dihydro-2'-(methylsulfonyl)spiro[cyclohexane-1,9'(6'H)-pyrazino[1',2':1,5]pyrrolo[2,3-d]pyrimidin]-6'-one; Spiro[cyclohexane-1,9'(6'H)-pyrazino[1',2':1,5]pyrrolo[2,3-d]pyrimidin]-6'-one, 7',8'-dihydro-2'-(methylsulfonyl)-; Trilaciclib Impurity 2; Trilaciclib Impurity 4