1-((3R,4S)-4-hydroxy-1-(2-methoxyethyl)-4-phenylpyrrolidin-3-yl)-3-(2-phenyl-2,4,5,6-tetrahydrocyclopent[c]pyrazol-3-yl)urea 、 1-((3R,4R)-4-hydroxy-1-(2-methoxyethyl)-4-phenylpyrrolidin-3-yl)-3-(2-phenyl-2,4,5,6-tetrahydrocyclopenta[c]pyrazol-3-yl)urea 、
二乙胺基三氟化硫 在
甲醇 作用下,
以
二氯甲烷 为溶剂,
反应 16.0h,
以to afford the title compound as about a 1:3 mixture with 1-((3R,4R)-4-fluoro-1-(2-methoxyethyl)-4-phenylpyrrolidin-3-yl)-3-(2-phenyl-2,4,5,6-tetrahydrocyclopenta[c]pyrazol-3-yl)urea (2.6 mg, 40% yield)的产率得到US10323022, Example 181