Process for preparing enantiomerically pure imidazo[4,5,1-JK][1,

Details Process for preparing enantiomerically pure imidazo[4,5,1-JK][1, Process for preparing enantiomerically pure imidazo[4,5,1-JK][1,

1995-03-30

1997-02-04

Raymond, Richard L.

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

Organic compounds

Amino nitrogen containing

564 87, 564 92, 564 96, 564 97, 564 98, 564 99, 564156, 560159, C07C31105, C07C31118

Patent

active

055999824

ABSTRACT:
Process for preparing enantiomerically pure imidazo[4,5,1-jk][1,4]benzodiazepin-2(1H)-thiones of formula ##STR1## starting from 2,6-dihalo-3-nitrobenzyl derivatives (II) and suitably N-protected 1,2-diaminopropanes (III) ##STR2## Novel enantiomerically pure intermediates of formula (III) and (IV) prepared in the course of the present process.

REFERENCES:
Smith et al., Chemical Abstracts, vol. 81, 104983m. 1974.
Large et al., Chemical Abstracts, vol. 97, 155937n. 1982.

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