Process for preparing intermediates for the synthesis of D1 anta

Details Process for preparing intermediates for the synthesis of D1 anta Process for preparing intermediates for the synthesis of D1 anta

1995-05-23

1996-03-26

Datlow, Philip I.

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

Organic compounds

Unsubstituted hydrocarbyl chain between the ring and the -c-...

C07D22314

Patent

active

055021867

ABSTRACT:
Disclosed are a process and intermediates of the formula ##STR1## wherein R is --CH.sub.3 or --C(O)--OR.sup.1, and R.sup.1 is C.sub.1 -C.sub.6 alkyl or --CH.sub.2 C.sub.6 H.sub.5 ; or the formula ##STR2## wherein: R.sup.2 is H or OH, R is --C(O)OR.sup.1 and R.sup.1 is C.sub.1 -C.sub.6 alkyl or --CH.sub.2 C.sub.6 H.sub.5, or where R.sup.2 is H, R can also be CH.sub.3 ; for preparing benzazepine intermediates of the formula ##STR3## The benzazepine intermediates are useful for preparing benzazepines having activity as selective D1 receptor antagonists.

REFERENCES:
patent: 4973586 (1990-11-01), Berger et al.
Berger, et al, J. Med. Chem., 32, 1913-1921 (1989).

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