methyl 2-[3-[[5-cyclopropyl-6-(cyclopropylmethoxy)pyridine-2-carbonyl]amino]thietan-3-yl] acetate 、
单水氢氧化锂 以to give the title compound (51 mg, 73%) as yellow oil which的产率得到2-[3-[[5-cyclopropyl-6-(cyclopropylmethoxy)pyridine-2-carbonyl]amino]thietan-3-yl]acetic acid