The present invention relates to processes and intermediates for the preparation of compounds of formula (I):
wherein R1 and R2 represent hydrogen or deuterium atoms; R3 represents a hydrogen atom or a -COOH, a -OH or a -OPO(OH)2 group; R4 represents a hydrogen atom or a fluorine atom; R5 represents a hydrogen atom or a -OH group; wherein at least one of R3 or R5 is different from a hydrogen atom; when R3 represents a-COOH, -OH or-OPO(OH)2 group, then R5 represents a hydrogen atom; when R5 represents a -OH group, then R3 and R4 represent hydrogen atoms; and R6 is selected from an optionally substituted phenyl, heteroaryl, cycloalkyl or heterocycloalkyl group.
本发明涉及制备式 (I) 化合物的工艺和中间体:
其中 R1 和 R2 代表氢原子或
氘原子;R3 代表氢原子或-COOH、-OH 或-OPO(OH)2 基团;R4 代表氢原子或
氟原子;R5 代表氢原子或-OH 基团;其中 R3 或 R5 中至少有一个不同于氢原子;当 R3 代表-COOH、-OH 或-OPO(OH)2 基团时,则 R5 代表氢原子;当 R5 代表-OH 基团时,则 R3 和 R4 代表氢原子;以及 R6 选自任选取代的苯基、杂芳基、环烷基或杂环烷基。