Patent ID: 7776918

Claim:
A compound represented by the following general formula (I): wherein A represents a phenyl group substituted with —OX; X represents a linear or branched alkynyl group having 2 to 8 carbon atoms; B represents a hydrogen atom, a hydroxyl group, an oxo group, —N(R 4 ) (R 5 ), ═N—OH, ═N—OR 6 or a halogen atom; R 4 and R 5 may be the same or different, and each represent a hydrogen atom, a linear or branched alkyl group having 1 to 6 carbon atoms, a linear or branched alkenyl group having 2 to 6 carbon atoms, or a linear or branched alkynyl group having 2 to 6 carbon atoms, or R 4 and R 5 together represent a 3 to 8 member ring; R 6 represents a linear or branched alkyl group having 1 to 8 carbon atoms (which may be substituted with an amino group which may be mono- or di-substituted with a linear or branched alkyl group having 1 to 4 carbon atoms); D represents a hydrogen atom or a hydroxyl group; bond E represents a single bond or double bond; R 1 , R 2 and R 3 may be the same or different, and each represent a hydrogen atom, a hydroxyl group, an amino group (which may be mono- or di-substituted with a linear or branched alkyl group having 1 to 4 carbon atoms), —OZ , a linear or branched alkyl group having 1 to 4 carbon atoms, a linear or branched alkenyl group having 2 to 4 carbon atoms, or a linear or branched alkynyl group having 2 to 4 carbon atoms; and, Z represents a linear or branched alkyl group having 1 to 4 carbon atoms, a linear or branched alkenyl group having 2 to 4 carbon atoms, or a linear or branched alkynyl group having 2 to 4 carbon atoms, or a pharmaceutically acceptable salt thereof.