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:
Jul. 08, 1997
Filed:
Sep. 29, 1994
Bohumil Bednar, North Wales, PA (US);
Melissa Egbertson, Ambler, PA (US);
Robert J Gould, Green Lane, PA (US);
George D Hartman, Landsdale, PA (US);
Jules A Shafer, Gwynedd Valley, PA (US);
Merck & Co., Inc., Rahway, NJ (US);
Abstract
The invention is directed to a series of novel compounds, and their pharmaceutically acceptable salts, of the formula ##STR1## wherein R is C.sub.0-6 alkyl substituted with R.sup.5 or a mono or polycyclic aromatic or heteroaromatic system comprised of 5 or 6-membered aromatic or heteroaromatic rings that are either unsubstituted or substituted with one or more of R.sup.1 and R.sup.2 ; R.sup.1 and R.sup.2 are independently C.sub.1-6 alkyl, carboxyl, hydroxyl, azido, nitro, amino, C.sub.1-6 alkylamino, C.sub.1-6 dialkylamino, arylamino, aryl C.sub.1-6 alkylamino, hydroxysulfonyl or arylazo; aryl is a phenyl or naphthyl ring which is unsubstituted or substituted with one or more of R.sup.3 and R.sup.4 ; R.sup.3 and R.sup.4 are independently C.sub.1-6 alkyl, azido, nitro, amino, C.sub.1-6 dialkylamino or hydroxysulfonyl; R.sup.5 is ##STR2## provided that when R is an unsubstituted monocyclic ring, the monocyclic ring is not phenyl or pyridyl. Such compounds are useful as fluorescent probes for identifying antiplatelet agents which selectively bind to activated platelets.