| http://www.w3.org/ns/prov#value | - or its reactive derivative.(Production Method A)##STR00003## (In the formula, X.sup.2 is a single bond and binds to a carbon atom on the heterocyclic ring represented by Het.)As an illustrative production method of ramosetron, Patent Reference 1 describes a production method (Production method A-1) in which racemic ramosetron are obtained by using 1-methyl-1H-indole as the compound (III), andN,N-d
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