反应详情

According to the procedure described in Example 133A Step 3, 2-(2-cyclopentyl-1,3-dioxolan-2-yl)acetonitrile (1.5 g, 8.3 mmol) was reacted with hydroxylamine hydrochloride (3.17 g, 45.5 mmol) and liquid ammonia (7.8 mL, 7N in methanol), to afford 2-(2-cyclopentyl-1,3-dioxolan-2-yl)-N′-hydroxyacetimidamide, which was used directly in the next step without further purification. 1H NMR (300 MHz, CDCl3) δ 5.11 (bs, 2H), 4.20-3.95 (m, 4H), 2.38 (s, 2H), 2.33-2.22 (m, 1H), 1.73-1.41 (m, 8H); LC-MS (ESI) m/z 215 (M+H)+