反应详情

The reaction and aftertreatment were conducted in the same manner as in Example 67c by using the 5-(8,8-difluoro-1,4-dioxaspiro[4.5]dec-6-en-6-yl)-1-methyl-1H-pyrazole (758 mg, 2.96 mmol) prepared in Example 88e, 5 M hydrochloric acid (10 mL) and THF (10 mL), to yield the title compound (170 mg, 14%, 3 steps) as a colorless oil.

1. customThe reaction and aftertreatment