反应详情

Using a similar procedure to that described in Example 35, but using butyl chloroformate and (J), the title compound was obtained as a solid in 34% yield; partial NMR: 0.9 (t,3 H, CH3CH2), 1.4 (m,2 H, CH3CH2), 1.6 (m,2 H, CH2CH2O), 4.1 (t,2 H, CH2O).