Types of C-3 substituted kynurenic acid derivatives with improved neuroprotective activity
申请人:SZEGEDI TUDOMÁNYEGYETEM
公开号:US10870633B2
公开(公告)日:2020-12-22
The invention relates to C-3 substituted kynurenic acid derivatives with the general formula (I) wherein R1 is C1-7alkyl-, R6R7N—C1-7alkyl-, C6-10aryl-C1-7alkyl group; R2 is H or C1-7alkyl group; or R1 and R2 with the nitrogen atom to which they are attached form a saturated or partially saturated 5-7 membered, optionally benzofused heterocyclic ring, optionally comprising additional N, O, S heteroatoms and optionally being substituted; R3 is —OH, C1-7alkyl-O—, —NH2, C1-7alkyl-NH—, C6-10aryl-C1-7alkyl-NH— or —NH— —(CH2)n—NR8R9 group wherein n is an integer from 1 to 3; R4 is H, C1-7alkyl-, C6-10aryl group or a halogen atom; R5 is H or C6-10aryl group; R6 is C1-7alkyl group; R7 is C1-7alkyl group; or R6 and R7 with the nitrogen atom to which they are attached form a saturated or partially saturated 5-7 membered, optionally benzofused heterocyclic ring, optionally comprising additional N, O, S heteroatoms and optionally being substituted; R8 is C1-7alkyl group; R9 is C1-7alkyl group; R8 and R9 with the nitrogen atom to which they are attached form a saturated or partially saturated 5-7 membered, optionally benzofused heterocyclic ring, optionally comprising additional N, O, S heteroatoms and optionally being substituted; and stereoisomers, tautomers and salts thereof. The invention relates to the pharmaceutical preparations comprising the compounds and stereoisomers, tautomers and pharmaceutically acceptable salts. The compounds of the invention have neuroprotective activity, may be used for the prevention and treatment of neurodegeneration, and for slowing down the development of the conditions and diseases associated with a decline in cognitive abilities.
本发明涉及具有通式(I)的 C-3 取代的犬尿酸衍生物,其中 R1 是 C1-7 烷基、R6R7N-C1-7烷基、C6-10 芳基-C1-7烷基;R2 是 H 或 C1-7 烷基;或 R1 和 R2 与它们所连接的氮原子形成饱和或部分饱和的 5-7 位元、任选苯并杂环,任选包括额外的 N、O、S 杂原子并任选被取代;R3 是 -OH、C1-7 烷基-O-、-NH2、C1-7 烷基-NH-、C6-10 芳基-C1-7 烷基-NH- 或 -NH- -(CH2)n-NR8R9 基团,其中 n 是 1 到 3 的整数;R4 是 H、C1-7 烷基、C6-10 芳基或卤原子;R5 是 H 或 C6-10 芳基;R6 是 C1-7 烷基;R7 是 C1-7 烷基;或 R6 和 R7 与它们所连接的氮原子形成饱和或部分饱和的 5-7 位元、任选苯并杂环,任选包括额外的 N、O、S 杂原子并任选被取代;R8是C1-7烷基;R9是C1-7烷基;R8和R9与它们所连接的氮原子形成饱和或部分饱和的5-7个成员的、可选地包含额外的N、O、S杂原子并可选地被取代的杂环;以及它们的立体异构体、同系物和盐。本发明涉及包含本发明化合物及其立体异构体、同系物和药学上可接受的盐的药物制剂。本发明的化合物具有神经保护活性,可用于预防和治疗神经变性,以及减缓与认知能力下降相关的病症和疾病的发展。