Processes for the preparation of benzo(chalcogeno)(4,3,2-cd)inda

Details Processes for the preparation of benzo(chalcogeno)(4,3,2-cd)inda Processes for the preparation of benzo(chalcogeno)(4,3,2-cd)inda

1988-02-11

1989-02-21

Ramsuer, Robert W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D49106, C07D49506

Patent

active

048066540

ABSTRACT:
Improved processes for producing substituted benzo(chalcogeno)[4,3,2-cd] indazoles. The processes produce compounds in higher yields and of greater purity by using a novel sequence of acylation chemistry and easily removed protecting groups. The compounds produced have antibacterial, antifungal, antileukemic, and antitumor activity.

REFERENCES:
patent: 4604390 (1986-08-01), Elslager et al.

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