Process for preparing pyrenzepine

Details Process for preparing pyrenzepine Process for preparing pyrenzepine

1980-06-06

1981-07-07

Bond, Robert T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D48704

Patent

active

042773997

ABSTRACT:
Pyrenzepine, as such or as an acid addition salt, is made by reacting a lower alkyl ester of o-aminobenzoic acid with 3-aminopyridine in the presence of a base and reacting the tricyclic product with a mixed anhydride of methyl-piperazine acetic acid.

REFERENCES:
patent: 3406168 (1968-10-01), Schmidt
patent: 3539554 (1970-11-01), Schmidt et al.
patent: 3660380 (1972-05-01), Schmidt et al.
patent: 4210648 (1980-07-01), Schmidt et al.
patent: 4213984 (1980-07-01), Schmidt et al.
patent: 4213985 (1980-07-01), Schmidt et al.

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