A process comprising (i) providing a mixture comprising a compound of formula (I) or isomers, stereoisomers, diastereomers, enantiomers or salts thereof; (ii)subjecting the mixture provided in (i) to fluorinating conditions in the presence of a fluorination agent selected from the group consisting of diethylamino (difluoro) sulfonium tetrafluoroborate and difluoro(morpholino) sulfonium tetrafluoroborate obtaining a mixture comprising a compound of formula (II) or isomers, stereoisomers diastereomers, enantiomers or salts thereof; (iii) optionally subjecting the mixture obtained in (ii) to deprotection conditions, obtaining a mixture comprising the compound of formula (III) or isomers, stereoisomers, diastereomers, enantiomers or salts thereof.
一种方法包括:(i)提供一个混合物,其中包括式(I)的化合物或其异构体、立体异构体、对映异构体或其盐;(ii)在
氟化试剂的存在下,将步骤(i)中提供的混合物暴露于
氟化条件下,所述
氟化试剂选自
二乙基氨基(二
氟)
硫代四
氟硼酸盐和二
氟(
吗啡啶基)
硫代四
氟硼酸盐,从而得到一个混合物,其中包括式(II)的化合物或其异构体、立体异构体、对映异构体或其盐;(iii)可选地,将步骤(ii)中获得的混合物暴露于去保护条件下,从而得到一个混合物,其中包括式(III)的化合物或其异构体、立体异构体、对映异构体或其盐。