| http://www.w3.org/ns/prov#value | - II), with ice cooling, whereby the compound (III) can be obtained.The compound (III) thus obtained is subjected to hydrolysis reaction with hydrochloric acid, etc. in a solvent, for example, alcohol such as methanol, ethanol, propanol, etc., acetone, etc. at room temperature, whereby compound (I-1) can beobtained.Then, the compound (I-1) is halogenated, if necessary, whereby compound (I-2) can be
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