反应详情

The title compound was prepared in analogy to example 133 step 5 from 10-(2,2-difluoro-benzo[1,3]dioxol-5-yl)-1,4-dioxa-10-aza-dispiro[4.2.4.2]tetradecan-9-one (described in example 336, step 1) by treatment with 2M HCl. White solid. MS (m/e): 324.2 [MH+].