Patent ID: 8193378

Claim:
A 2H-chromene compound represented by the following formula (I): (wherein A represents lower alkyl, cycloalkyl, aryl, or heteroaryl, wherein aryl and heteroaryl may respectively be substituted with one to five R 1 s which are the same as or different from each other; R 1 represents halogen, —CN, —NO 2 , lower alkyl, lower alkenyl, lower alkynyl, halogeno-lower alkyl, aryl, heteroaryl, cycloalkyl, —OH, —O-(lower alkyl), —O-(halogeno-lower alkyl), —O-(aryl), —O-(cycloalkyl), —O-(heteroaryl), —NH 2 , —NH(lower alkyl), —NH(halogeno-lower alkyl), —N(lower alkyl) 2 , or cyclic amino, wherein aryl, heteroaryl, cycloalkyl, and cyclic amino may respectively be substituted with one to five substituents which are the same as or different from each other and selected from the group consisting of halogen, —CN, lower alkyl and halogeno-lower alkyl; L represents lower alkylene, lower alkenylene, lower alkynylene, -(lower alkylene)-O—, —O-(lower alkylene)-, or -(lower alkylene)-O-(lower alkylene)-; Q represents —C(R 2B )═C(R 2C )—; R 2A , R 2B , and R 2C independently represent —H, halogen, lower alkyl, halogeno-lower alkyl, —O-(lower alkyl), or —O-(halogeno-lower alkyl); R 3 represents —H, halogen, lower alkyl, halogeno-lower alkyl, or aryl; R 4A represents —H or lower alkyl; R 4B represents lower alkyl substituted with a group selected from Group G or cycloalkyl substituted with a group selected from Group G; or R 4A and R 4B are combined with N to which they bind to form cyclic amino substituted with a group selected from Group G, in which the cyclic amino may further contain one to four substituents which are the same as or different from each other and selected from the group consisting of halogen, lower alkyl, and halogeno-lower alkyl; and Group G represents, —C(═O)OH, tetrazolyl, —C(═O) NHS(═O) 2 (lower alkyl), -(lower alkylene)-C(═O)OH, or or a salt thereof.