A method for preparing carbamic acid aryl-2-tetrazolyl ethyl ester of the Chemical Formula 1, comprising: subjecting an arylketone, represented by Chemical Formula 2, to enantioselective enzymatic reduction to form an alcohol compound of -configuration, represented by Chemical Formula 3; and carbamating said alcohol wherein, R 1 and R 2 are independently selected from a group consisting of hydrogen, halogen, perfluoroalkyl, an alkyl of 1 to 8 carbon atoms, a thioalkoxy of 1 to 8 carbon atoms, and an alkoxy of 1 to 8 carbon atoms; one of A 1 and A 2 is CH with the other being N; and said enantioselective enzymatic reduction is carried out in a reaction mixture comprising said compound of Chemical Formula 2, an oxidoreductase having at least 90% homology with amino acid sequence SEQ ID NO: 1, SEQ ID NO: 2, SEQ ID NO: 3 or SEQ ID NO:4, NADH or NADPH as a cofactor that is oxidized during the reduction process and continuously regenerated, a cosubstrate comprising a secondary alcohol represented by the Formula R x R y CHOH, wherein R x represents carbon with x being an integer from 1-10 and R y represents hydrogen with y being an integer equal to two times the value of x plus two, and a suitable buffer. subjecting an arylketone, represented by Chemical Formula 2, to enantioselective enzymatic reduction to form an alcohol compound of -configuration, represented by Chemical Formula 3; and carbamating said alcohol wherein, R 1 and R 2 are independently selected from a group consisting of hydrogen, halogen, perfluoroalkyl, an alkyl of 1 to 8 carbon atoms, a thioalkoxy of 1 to 8 carbon atoms, and an alkoxy of 1 to 8 carbon atoms; one of A 1 and A 2 is CH with the other being N; and said enantioselective enzymatic reduction is carried out in a reaction mixture comprising said compound of Chemical Formula 2, an oxidoreductase having at least 90% homology with amino acid sequence SEQ ID NO: 1, SEQ ID NO: 2, SEQ ID NO: 3 or SEQ ID NO:4, NADH or NADPH as a cofactor that is oxidized during the reduction process and continuously regenerated, a cosubstrate comprising a secondary alcohol represented by the Formula R x R y CHOH, wherein R x represents carbon with x being an integer from 1-10 and R y represents hydrogen with y being an integer equal to two times the value of x plus two, and a suitable buffer. R 1 and R 2 are independently selected from a group consisting of hydrogen, halogen, perfluoroalkyl, an alkyl of 1 to 8 carbon atoms, a thioalkoxy of 1 to 8 carbon atoms, and an alkoxy of 1 to 8 carbon atoms; one of A 1 and A 2 is CH with the other being N; and said enantioselective enzymatic reduction is carried out in a reaction mixture comprising said compound of Chemical Formula 2, an oxidoreductase having at least 90% homology with amino acid sequence SEQ ID NO: 1, SEQ ID NO: 2, SEQ ID NO: 3 or SEQ ID NO:4, NADH or NADPH as a cofactor that is oxidized during the reduction process and continuously regenerated, a cosubstrate comprising a secondary alcohol represented by the Formula R x R y CHOH, wherein R x represents carbon with x being an integer from 1-10 and R y represents hydrogen with y being an integer equal to two times the value of x plus two, and a suitable buffer.