Mitsubishi Chemical Corporation

Akihiro Takemiya

Kouichi Sekiya

Masahiro Ohshima

A compound represented by the following formula (I), or a salt thereof:where X is a halogen atom or a group represented by &#x2014;S&#x2014;(CH)&#x2014;A, &#x2014;SO&#x2014;(CH)&#x2014;B, &#x2014;SO&#x2014;(CH)&#x2014;B, &#x2014;OSO&#x2014;(CH)&#x2014;B, &#x2014;OCO&#x2014;(CH)&#x2014;B or &#x2014;OPO(OR)&#x2014;(CH)&#x2014;B, wherein n represents an integer of 0-4, A represents an optionally substituted aromatic hydrocarbon group or an optionally substituted heterocyclic residue having 1 to 4 hetero atoms selected from an oxygen atom, sulfur atom and nitrogen atom and having 5 to 10 ring-constituent atoms, m represents an integer of 0-4, B represents an optionally substituted alkyl group, an optionally substituted aromatic hydrocarbon group or an optionally substituted heterocyclic residue having 1 to 4 hetero atoms selected from an oxygen atom, sulfur atom and nitrogen atom and having 5 to 10 ring-constituent atoms, and R represents an optionally substituted alkyl group.

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Yokohama, Japan

Akihiro Takemiya