(3R*,4S*)-4-cyclopropylamino-3,4-dihydro-2,2-dimethyl-6-(4-methoxyphenylacethylamino)-7-nitro-2H-1-benzopyran-3-ol hydrochloride
(3r*,4s*)-4-cyclopropylamino-3,4-dihydro-2,2-dimethyl-6-(4-methoxyphenylacethylamino)-7-nitro-2h-1-benzopyran-3-ol hydrochloride