专利号:WO-2024022475-A1 优先权日:2022-07-28 标 题:A pyridinyl substituted thiohydantoin pharmaceutical intermediate and its preparation method and use 发明人:TONG YOUZHI; MENG XIANGBING; ZHANG HUIHUI; XU RUO 权利人:SUZHOU KINTOR PHARMACEUTICALS INC 摘要:The present invention belongs to the technical field of pharmaceutical synthesis technology and relates to a pyridyl-substituted thioglycolide intermediate for pharmaceutical use and its preparation method and use. In particular, the present invention discloses compounds of formula (I), which can be used to prepare thioglycolide drugs, and solves the defects of the existing process such as harsh conditions and low yields. The present invention also discloses various preparation methods of compounds of formula (I), which involve novel processes for some upstream intermediates (for example, compounds of formula (II) in the form of carboxylic acids). In addition, the present invention discloses for the first time a method for the synthesis of compounds of formula (I) to obtain thioglycolide analogues by ring closing reaction with aryl isothiocyanate.