Process for producing guanidines such as linogliride

Details Process for producing guanidines such as linogliride Process for producing guanidines such as linogliride

1985-03-15

1987-04-07

Ramsuer, Robert W.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

544165, 544167, 260506, C07D29512, C07D41312

Patent

active

046562702

ABSTRACT:
Novel synthetic steps and intermediates leading to guanidines such as the anti-diabetic compound linogliride. Included is a hydrogen peroxide oxidation of a thiourea (II) to a sulfonic acid (I) which may then be reacted with morpholine to form the carboximidamide (III): ##STR1##

REFERENCES:
patent: 4210658 (1980-07-01), Durant et al.
patent: 4265896 (1981-05-01), Durant et al.
patent: 4381395 (1983-04-01), Teraji et al.

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