英文别名N-[2-(1,6,7,8-tetrahydro-2h-indeno[5,4-b]furan-8-yl)ethyl]acetamide; N-[2-(2,6,7,8-tetrahydro-1H-cyclopenta[e][1]benzofuran-8-yl)ethyl]acetamide; N-(2-(1,6,7,8-tetrahydro-2H-indeno[5,4-b]furan-8-yl)ethyl)acetamide; Acetamide, N-[2-(1,6,7,8-tetrahydro-2H-indeno[5,4-b]furan-8-yl)ethyl]-; N-(2-(2,6,7,8-tetrahydro-1H-indeno[5,4-b]furan-8-yl)ethyl)acetamide; Ramelteon-5; ramelteon impurity E; Ramelteon Impurity 2 
