Method for producing 5-(2-fluorophenyl)-1H-pyrrole-3-carboxyaldehyde by formylation and deprotection reaction, and 1-[5-(2-fluorophenyl)-1-(by sulfonylation) It relates to the preparation of pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl]-N-methylmethanamine monofumarate.포르밀화, 탈보호 반응에 의한 5-(2-플루오로페닐)-1H-피롤-3-카르복시알데히드의 제조 방법 및 술포닐화 등에 의한 1-[5-(2-플루오로페닐)-1-(피리딘-3-일술포닐)-1H-피롤-3-일]-N-메틸메탄아민모노푸마르산염의 제조에 관한 것이다.