通过使用二环己基碳二亚胺使三氟和二氟乙酰化的硫代氨基脲进行杂环化, 已经建立了一种方便有效的2-芳基氨基-5-氟烷基-1,3,4-恶二唑的方法。在碱性条件下用选定的硫代氨基脲进行的杂环化反应以中等收率得到了4-芳基-5-氟烷基-2,4-二氢-3 H -1,2,4-三唑-3-硫酮。通过用相应的酸酐对苄氧羰基保护的肼进行氟乙酰化,然后进行氢解脱保护并与芳基异硫氰酸酯反应,来制备起始的氟乙酰化的硫代氨基脲。氟乙酰化的氨基脲的制备方法相似,但所有实现其杂环化的尝试均未成功。
Compounds of formula (I): compositions comprising them, processes for preparing them and their use in medical therapy (for example modulating CCR5 receptor activity in a warm blooded animal).
The present invention provides a heterocyclic compound having a HDAC inhibitory action, and useful for the treatment of central nervous system diseases including neurodegenerative disease, and the like, and a medicament comprising the compound. The present invention relates to a compound represented by the formula (I) wherein each symbol is as defined in the specification, or a salt thereof.
A cyclopropane derivative represented by the following formula (I) or a pharmaceutically acceptable salt thereof has orexin receptor inhibitory action, and thus, is extremely useful as an agent for preventing or treating sleep disorder or dyssomnia caused by orexin, including insomnia as a typical example:
wherein A
1
, A
2
and A
3
each independently represent an aryl group, a heterocyclyl group or the like, R
1
, R
2
and R
3
each independently represent a hydrogen atom, a C
1-6
alkyl group or the like, X represents an oxygen atom or the like, and L represents a bond or the like.
The present invention relates to novel processes for the production of compounds of formula I
本发明涉及一种新型的制备化合物I的方法。
[EN] 1,3,4-OXADIAZOLE PYRIMIDINES AS FUNGICIDES<br/>[FR] 1,3,4-OXADIAZOLE PYRIMIDINES EN TANT QUE FONGICIDES
申请人:BAYER AG
公开号:WO2021255169A1
公开(公告)日:2021-12-23
The present invention relates to 1,3,4-oxadiazole pyrimidine compounds, processes and intermediates for 5 their preparation as well as the uses thereof for controlling phytopathogenic microorganisms, such as phytopathogenic fungi.