| 主权项 |
1. A hydrate of a compound represented by formula (I-2) or a salt thereof:in formula (I-2),
R1 represents an optionally substituted alkanediyl group having 2 to 12 carbon atoms, an optionally substituted cycloalkanediyl group having 3 to 12 carbon atoms or a *—B1—Ar—B2—* group, * represents a connecting bond, B1 represents a single bond or an alkanediyl group having 1 to 12 carbon atoms, B2 represents a single bond or an alkanediyl group having 1 to 12 carbon atoms, Ar represents an optionally substituted di-valent aromatic hydrocarbon group having 6 to 12 carbon atoms, R2 and R3 represent each independently a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, an aryl group having 6 to 12 carbon atoms, a hydroxy group or an alkoxy group having 1 to 6 carbon atoms, alternatively, are mutually linked to form an alkanediyl group having 2 to 12 carbon atoms, R44 represents an alkoxy group having 1 to 6 carbon atoms, an aryloxy group having 6 to 12 carbon atoms, an arylalkoxy group having 7 to 15 carbon atoms or —NR5R6, R5 and R6 represent each independently a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, and X represents —NH— or —O—. |
