PROBLEM TO BE SOLVED: To provide a method for producing a compound represented by formula (3) useful as a medicine, by which the compound is acquired more efficiently and with higher purity.SOLUTION: In the method, by making a compound represented by formula (6) (wherein each of R3 and R4 is independently a hydrogen atom etc., and R5 is a 1C-6C alkyl group etc.) and a compound represented by formula (7) (wherein M is pyridine-2-yl-oxy etc.) react with each other, a compound represented by formula (2) is produced, and by making a compound represented by formula (1) (in formula, R1a is a 1C-6C alkyl group which is optionally substituted, R1b is a 1C-6C alkyl group which is optionally substituted, each of R1c and R1d is independently, identical to or different from each other, a 1C-6C alkyl group etc. which is optionally substituted, R2 is a 1C-6C alkyl group which is optionally substituted, and G is an oxygen atom etc.) and the compound represented by formula (2) react with each other, a compound represented by formula (3) (symbols in formula are identical to those described) is produced.COPYRIGHT: (C)2012,JPO&INPIT【課題】医薬上有用である式(3)で表される化合物をより効率的及び、より高純度で取得出来る製造方法の提供。【解決手段】式(6)で表される化合物(R3およびR4は、各々独立して、水素原子等;R5は、C1-6アルキル基等である。)と式(7)で表される化合物(Mは、ピリジンー2-イルーオキシなど)を反応して、式(2)で表される化合物を製造し、式(1)で表される化合物(式中、R1aは、置換されていてもよいC1-6アルキル基;R1bは、置換されていてもよいC1-6アルキル基;R1cおよびR1dは、各々独立して、同一または異なって、置換されていてもよいC1-6アルキル基等であり;R2は、置換されていてもよいC1-6アルキル基;Gは、酸素原子等である。)と、式(2)で表される化合物を反応し、式(3)で表される化合物(式中の記号は前記と同じである。)を製造する方法。【選択図】なし
