2-amino-bicyclo(3.1.0) hexane-2,6-dicarboxylic ester derivative

A 2-amino-bicyclo[3.1.0]hexane-2,6-dicarboxylic ester compound, or a pharmaceutically acceptable salt thereof, represented by formula [II]

• wherein,
• R1 and R2 are identical or different, and each represents a C2-10alkenyl group, a C2-10alkynyl group, a halogenoC1-10alkyl group, an azidoC1-10alkyl group, an aminoC2-10alkyl group, a C1-10alkoxycarbonylC1-10alkyl group, a farnesyl group, a C1-10alkyl group substituted by a group represented by formula-C(O)NRaRb (wherein Ra and Rb are identical or different, and each represents a hydrogen atom or a C1-10alkyl group), a group represented by formula-CHRcOC(O)ZRd (wherein Z represents an oxygen atom, a nitrogen atom, a sulfur atom or a single bond;
• Rc represents a hydrogen atom, a C1-10alkyl group, a C2-10alkenyl group or an aryl group, and Rd represents a C1-10alkyl group, a C2-10alkenyl group or an aryl group),
• in the case where either R1 or R2 represents a hydrogen atom, the other represents a C2-10alkenyl group, a C2-10alkynyl group, a C1-10alkyl group substituted by one or two phenyl groups substituted by a methoxy group, a fluorine atom or a methyl group, a halogenoC1-10alkyl group, an azidoC1-10alkyl group, an aminoC2-10alkyl group, a C1-10alkoxycarbonylC1-10alkyl group, a farnesyl group, a C1-10alkyl group substituted by a group represented by formula-C(O)NRaRb(wherein Ra and Rb are the same as described above), a group represented by formula-CHRcOC(O)ZRd (wherein Z, Rc and Rd are the same as described above),
• X represents a fluorine atom;
• and
• Y is 3,4-dichlorobenzyloxy.