英文别名Ramelteon Impurity 20; N-{2-[(8R)-1,6,7,8-Tetrahydro-2H-indeno[5,4-b]furan-8-yl]ethyl}propanamide; N-[2-[(8R)-2,6,7,8-tetrahydro-1H-cyclopenta[e][1]benzofuran-8-yl]ethyl]propanamide; N-(2-((8R)-1,6,7,8-Tetrahydro-2H-indeno(5,4-b)furan-8-yl)ethyl)propanamide; N-[2-[(8R)-1,6,7,8-Tetrahydro-2H-indeno[5,4-b]furan-8-yl]propanamide; (R)-RAMELTEON; Ramelteon, (R)-; Ramelteon Impurity P; (R)-N-(2-(2,6,7,8-TETRAHYDRO-1H-INDENO[5,4-B]FURAN-8-YL)ETHYL)PROPIONAMIDE; N-(2-((8R)-2,6,7,8-Tetrahydro-1H-cyclopenta(E)(1)benzofuran-8-yl)ethyl)propanamide; PropanaMide, N-[2-[(8R)-1,6,7,8-tetrahydro-2H-indeno[5,4-b]furan-8-yl]ethyl]-; Ramelteon R-Isomer; Ramelteon impurity 02 
