反应详情

Following the procedure as described in Example 305/306, Step 2 and making variations as required to replace tert-butyl 4-(1,4-dioxaspiro[4.5]decan-8-ylmethoxy)-5-chloro-2-fluorobenzoate with tert-butyl 4-(1,4-dioxaspiro[4.5]decan-8-yloxy)-5-chloro-2-fluorobenzoate, the title compound was obtained as a yellowish oil (0.557 g, 79%): 1H NMR (300 MHz, CDCl3) δ 7.36 (d, J=8.4 Hz, 1H), 6.53 (d, J=13.2 Hz, 1H), 4.54-4.39 (m, 1H), 3.97-3.93 (m, 4H), 2.07-1.58 (m, 9H), 1.55 (s, 9H), 0.92-0.82 (m, 2H), 0.63-0.57 (m, 2H).