Ethyl (2S)-3-{4-[(3,5-Dichloroisonicotinoyl)amino]phenyl}-2-[2-(1-methyl-pyridin-3-yl)-3-oxo-spiro[3.5]non-1-en-1-ylamino]-propanoate iodide salt 在
二氧化铂 作用下,
以
乙醇 为溶剂,
以100%的产率得到ethyl (2S)-3-{4-[(3,5-dichloroisonicotinoyl)amino]phenyl}-2-[2-(1-methyl-piperidin-3-yl)-3-oxo-spiro[3.5]non-1-en-1-ylamino]propanoate