3,4-dihydro-2-(2-{[2-(3,4-dimethoxyphenyl)ethyl]-N-(tert-butoxycarbonyl)amino}ethyl)-4-(5-isoquinolinesulfonyl)-2H-1,4-benzoxazine
1-benzyl-4-(isoquinoline-5-sulfonyl)piperazine-2-carboxylic acid ethyl ester
fasudil
3-(5-isoquinolinylsulfonyloxy)-5-methylphenol