3 hasil
BACKGROUND OF THE INVENTION
Racemic (dl or RS) 2,3-Dihyro-6-fluoro-spiro[4H-1-benzopyran-4,4'-imidazolidine]-2',5'-dione and 6-chloro-2,3-dihydro-spiro-[4H-1-benzopyran-4,4'-imidazolidine]-2',5'-dion e have heretofore been reported [Sarges, U.S. Pat. No. 4,117,230] to be aldose reductase inhibitors,
BACKGROUND OF THE INVENTION
Racemic (dl or RS) 2,3-Dihydro-6-fluoro-spiro-[4H-1-benzopyran-4,4'-imidazolidine]-2',5'-dion e and 6-chloro-2,3-dihydro-spiro-[4H-1-benzopyran-4,4'-imidazolidine]-2',5'-dion e have heretofore been reported [Sarges, U.S. Pat. No. 4,117,230] to be aldose reductase
BACKGROUND OF THE INVENTION
Racemic (dl or RS) 2,3-Dihydro-6-fluoro-spiro-[4H-1-benzopyran-4,4'-imidazolidine]-2',5'-dion e and 6-chloro-2,3-dihydro-spiro-[4H-1-benzopyran-4,4'-imidazolidine]-2',5'-dion e have heretofore been reported [Sarges, U.S. Pat. No. 4,117,230] to be aldose reductase