Pyrazole compound

A compound of Formula (1):

• or a pharmaceutically acceptable salt thereof wherein
• R1 and R2 are independently selected from the group consisting of hydrogen atom, a C1-6 alkyl group and a C3-8 cycloalkyl group,
• R3 and R4 are independently selected from the group consisting of hydrogen atom and a C1-6 alkyl group,
• R5 is an optionally-substituted C4-7 alkyl group or —(CR8R9)r-E,
• R6, R7, R8 and R9 are independently selected from the group consisting of hydrogen atom, fluorine atom and an optionally-substituted C1-6 alkyl group,
• A is an optionally-substituted C6-10 aryl group or an optionally-substituted 5- to 10-membered heteroaryl group,
• r is 1, 2, 3 or 4,
• E is an optionally-substituted C3-8 cycloalkyl group, an optionally-substituted C4-8 cycloalkenyl group, an optionally-substituted 5- to 10-membered saturated heterocyclic group which comprises 1 to 3 heteroatoms independently selected from the group consisting of oxygen atom and sulfur atom as a constituent atom of the ring, an optionally-substituted C6-10 aryl group or an optionally-substituted 5- to 10-membered heteroaryl group,
• L is oxygen atom, sulfur atom or —NR10—,
• n is 1, 2 or 3,
• R10 is hydrogen atom, a C1-6 alkyl group or a C3-8 cycloalkyl group, and
• X is hydrogen atom, a C1-6 alkyl group optionally-substituted with fluorine atom or a halogen atom.