The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 01, 1991
Filed:
Nov. 29, 1989
Applicant:
Inventors:
Wen-Sen Li, Bensalem, PA (US);
John K Thottathil, Robbinsville, NJ (US);
Michael Murphy, Warwick, NY (US);
Assignee:
E. R. Squibb & Sons, Inc., Princeton, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; C07D / ; C07D / ; C07D / ; C07D / ; C07D / ; C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
540488 ; 544130 ; 544131 ; 544133 ; 544139 ; 544141 ; 544146 ; 544152 ; 544158 ; 544159 ; 544160 ; 544161 ; 544163 ; 544165 ; 544167 ; 544168 ; 544169 ; 544171 ; 546189 ; 546194 ; 546208 ; 546209 ; 546210 ; 546213 ; 546214 ; 546226 ; 546230 ; 546234 ; 546235 ; 546237 ; 546239 ; 546255 ; 546278 ; 546280 ; 546281 ; 546283 ; 546284 ; 546304 ; 546306 ; 546309 ; 546312 ; 546316 ; 546323 ; 546328 ; 546330 ; 546335 ; 546337 ; 548196 ; 548200 ; 548336 ; 548337 ; 548341 ; 548343 ; 548517 ; 548518 ; 548524 ; 548527 ; 548531 ; 548537 ; 548538 ; 548557 ; 548558 ; 549 59 ; 549 60 ; 549 69 ; 549 72 ; 549473 ; 549480 ; 549487 ; 560 21 ;
Abstract
A process is disclosed for providing benzazepine intermediates of the formulae ##STR1## wherein R.sub.3, R.sub.4 and Y are as defined herein, which intermediates are useful in a process for the preparation of pharmaceutically useful benzazepine derivatives.