There are provided according to the invention novel compounds of formula (I) and pharmaceutically acceptable salts and solvates thereof:
wherein R
1
is selected from the group consisting of C
1-4
alkyl, C
4-6
cycloalkyl(CH
2
)
m
—, methoxyC
2-4
alkyl, HOCH
2
CH
2
—, R
3
(O)
2
S(CH
2
)
2
—, R
5
R
4
NCO(CH
2
)
n
—, and heterocyclyl(CH
2
)
m
— wherein any nitrogen heteroatom of the heterocyclyl radical may be unsubstituted or substituted by methyl; R
2
is hydrogen or methyl; R
3
is methyl or NH
2
; R
4-5
independently represent methyl, m is 0, 1 or 2; and n is 1 or 2; or R
1
and R
2
together with the nitrogen atom to which they are attached may form a heterocyclyl ring, which may be unsubstituted or substituted by one or two substituents selected from the group consisting of; methyl, ═O and (CH
3
)
2
N—.
本发明提供了公式(I)的新化合物及其药学上可接受的盐和溶剂化物:其中R1选自由C1-4烷基,C4-6环烷基(
CH2)m-,甲氧基C2-4烷基,HO -,R3(O)2S( )2-,R5R4NCO( )n-和杂环烷基( )m-,其中杂环烷基的任何氮杂原子可以未取代或被甲基取代;R2为氢或甲基;R3为甲基或NH2;R4-5独立地表示甲基,m为0,1或2;n为1或2;或R1和R2与它们所连接的氮原子一起可以形成一个杂环烷基环,该环可以未取代或被选自甲基,═O和(
CH3)2N-的一或两个取代基所取代。