申请人:MISSION THERAPEUTICS LIMITED
公开号:US20200331888A1
公开(公告)日:2020-10-22
The present invention relates to novel compounds and methods for the manufacture of inhibitors of deubiquitylating enzymes (DUBs). In particular, the invention relates to the inhibition of ubiquitin C-terminal hydrolase 30 or ubiquitin specific peptidase 30 (USP30). The novel compounds have formula (I): (Formula (I)) or are pharmaceutically acceptable salts thereof, wherein: R
1a
, R
1b
, R
1c
, R
1d
, R
1e
and R
1f
each independently represent hydrogen, optionally substituted C
1
-C
6
alkyl or optionally substituted C
3
-C
4
cycloalkyl, or R
1b
and R
1c
together form an optionally substituted C
3
-C
6
cycloalkyl ring, or R
1d
and R
1e
together form an optionally substituted C
3
-C
6
cycloalkyl ring; R
2
represents hydrogen or optionally substituted C
1
-C
6
alkyl; A represents an optionally further substituted 5 to 10 membered monocyclic or bicyclic heteroaryl, heterocyclyl or aryl ring; L represents a covalent bond or linker; B represents an optionally substituted 3 to 10 membered monocyclic or bicyclic heterocyclyl, heteroaryl, cycloalkyl or aryl ring; and when -A-L-B is at position x attachment to A is via a carbon ring atom of A, and either: A cannot be triazolopyridazinyl, triazolopyridinyl, imidazotriazinyl, imidazopyrazinyl or pyrrolopyrimidinyl; or B cannot be substituted with phenoxyl; or B cannot be cyclopentyl when L is an oxygen atom.
本发明涉及新化合物和制备去泛素化酶(DUBs)抑制剂的方法。具体而言,本发明涉及抑制泛素C-末端水解酶30或泛素特异性肽酶30(USP30)。这些新化合物的化学式为(I):(化学式(I)),或其药学上可接受的盐,其中:R1a,R1b,R1c,R1d,R1e和R1f分别独立地代表氢,可选择地取代的C1-C6烷基或可选择地取代的C3-C4环烷基,或者R1b和R1c共同形成一个可选择地取代的C3-C6环烷基环,或者R1d和R1e共同形成一个可选择地取代的C3-C6环烷基环;R2代表氢或可选择地取代的C1-C6烷基;A代表一个可选择地进一步取代的5到10个成员的单环或双环杂环芳基,杂环烷基或芳基环;L代表一个共价键或连接物;B代表一个可选择地取代的3到10个成员的单环或双环杂环烷基,杂环芳基,环烷基或芳基环;当-A-L-B位于位置x时,通过A的一个碳环原子连接到A,且:A不能是三唑吡啶基,三唑吡啉基,咪唑三嗪基,咪唑吡嗪基或吡咯嘧啶基;或者B不能被苯氧基取代;或者当L是氧原子时,B不能是环戊基。