DR. JOHN RUAN STEPHENS, M.D.
Osteopathic Medicine in Chapel Hill, NC

License number
North Carolina 200100474
Category
Osteopathic Medicine
Type
Internal Medicine
License number
North Carolina 200100474
Category
Medical Practice
Type
Pediatrics
License number
North Carolina 200100474
Category
Osteopathic Medicine
Type
Hospitalist
Address
Address
101 Manning Drive Cb #7085, Chapel Hill, NC 27599
Phone
(984) 974-1931
(984) 974-2216 (Fax)

Professional information

John R Stephens Photo 1

Dr. John R Stephens, Chapel Hill NC - MD (Doctor of Medicine)

Specialties:
Internal Medicine, Pediatrics
Address:
5034 Old Clinic, Chapel Hill 27599
(919) 966-3204 (Phone), (919) 966-3766 (Fax)
Certifications:
Internal Medicine, 2001, Pediatrics, 2001
Awards:
Healthgrades Honor Roll
Languages:
English
Education:
Medical School
University of North Carolina At Chapel Hill
Graduated: 1997
University Of North Carolina Hospitals


John Stephens Photo 2

Hexahydroindenopyridine Compounds Having Antispermatogenic Activity

US Patent:
5952336, Sep 14, 1999
Filed:
Jan 31, 1997
Appl. No.:
8/792611
Inventors:
C. Edgar Cook - Staunton VA
Joseph M. Jump - Warwick RI
Pingsheng Zhang - Millbrae CA
John R. Stephens - Chapel Hill NC
Patricia A. Fail - Apex NC
Mansukh C. Wani - Durham NC
Assignee:
Research Triangle Institute - Research Triangle Park NC
International Classification:
A61K 3144, C07D22116
US Classification:
514290
Abstract:
Hexahydroindenopyridine compounds having the following formula and relative stereochemistry ##STR1## where R. sup. 1 is C. sub. 1-6 alkyl; R. sup. 2 is hydrogen or C. sub. 1-6 alkyl; R. sup. 3 is carboxyl or a group which is metabolized to a carboxyl group under mammalian physiological conditions; R. sup. 4 is halogen; mixtures of said compound and acid addition salts thereof exhibit potent antispermatogenic activity and are useful in a method of inhibiting spermatogenesis in mammals.