| 摘要 |
There is provided:
(i) a compound of formula XXIV
and
(ii) a process for the preparation of a compound of formula I,
wherein R 1 , R 2 , R 3 , R 4 , X and Y are as described in the description. Such compounds may, for example, be useful intermediates in the synthesis of drugs such as Dronedarone. |
