1.	Begin with a benzene ring (Ring A), where position 1 bears a methyl (-CH3) substituent.
2.	Positions 3 and 4 of Ring A are shared with a fused five-membered nitrogen-containing ring (Ring B, labeled B1-B5), forming an indole ring system:
    - B1 is the nitrogen, carrying a methyl (-CH3) substituent.
    - B2 and B3 are double-bonded.
    - B4 corresponds to position 3 of Ring A, and B5 corresponds to position 4 of Ring A.
3.	Ring B is further fused to a six-membered nitrogen-containing ring (Ring C, labeled C1-C6):
    - C1 is a nitrogen, and others are carbons.
    - C4 corresponds to B2, and C5 corresponds to B3.
    - C3 is bonded to a benzene ring (Ring D).
4.	An adjacent carbon on Ring D is bonded to another benzene ring (Ring E, labeled E1-E6):
    - E1 is the attachment point to Ring D.
    - Ring E is further fused to a five-membered nitrogen-containing ring (Ring F, labeled F1-F5), forming another indole-like system:
        - F1 is the nitrogen, carrying a methyl (-CH3) substituent.
        - F2 and F3 are double-bonded.
        - F4 corresponds to E3, and F5 corresponds to E4.