Trilaciclib

Chemical Name: 2'-((5-(4-Methylpiperazin-1-yl)pyridin-2-yl)amino)-7',8'-dihydro-6'H-spiro[cyclohexane-1,9'-pyrazino[1',2':1,5]pyrrolo[2,3-d]pyrimidin]-6'-one

Smile: O=C1C(N(C2=N3)C4(CCCCC4)CN1)=CC2=CN=C3NC5=CC=C(N(CC6)CCN6C)C=N5