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• 57260-71-6 1-t-Butoxycarbonylpiperazine 
• 76144-87-1 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl 

Relevant academic research and scientific papers

3-Substituted tetrahydropyridopyrimidinone derivatives, method for producing the same, and their use

3-substituted tetrahydropyridopyrimidinone derivatives of the formula (I) wherein the radicals have the meanings given in the Description, to a method for producing said derivatives and, to their use for producing active ingredients for drugs.

Utilization of pyrimidine derivatives for preventing and treating cerebral ischaemia

Use of pyrimidine derivatives of the formula I where the substituents are as defined in the description, and of their physiologically tolerated salts for producing medicaments for the prophylaxis and treatment of cerebral ischemia and strokes.

2-substituted 1,2-benzisothiazole derivatives and their use as serotonin antagonists (5-HT1A, 5HT1B and 5-HT1D)

where the substituents have the meanings indicated in the description, their preparation and use as serotonin antagonists.

New μ-opioid receptor agonists with piperazine moiety

New μ-opioid receptor (MOR) agonists containing piperazine and homopiperazine moieties in the structures were synthesized and their affinities to and agonist potencies on MOR were evaluated. Among the synthesized compounds, 4-[4-(2-methoxyphenyl)piperazin-1-yl]-N,N-dimethyl-2,2-diphenylbutanamide (20Aa) showed the highest affinity to the human MOR expressed in Chinese hamster ovary (CHO)-K1 cells, and the highest agonist potency on the MOR in isolated guinea-pig ileum preparation.

3-substituted 3,4-dihydro-thieno[2,3-D]pyrimidine derivatives and production and use of the same

PCT No. PCT/EP98/03230 Sec. 371 Date Dec. 6, 1999 Sec. 102(e) Date Dec. 6, 1999 PCT Filed May 29, 1998 PCT Pub. No. WO98/56792 PCT Pub. Date Dec. 17, 19983-Substituted 3,4-dihydrothieno[2,3-d]pyrimidine derivatives of the formula I where R1 and R2 are a hydrogen atom or a C1-C4-alkyl group, R3 is a phenyl, pyridyl, pyrimidinyl or pyrazinyl group which is unsubstituted or mono- or disubstituted by halogen atoms, C1-C4-alkyl, trifluoromethyl, trifluoromethoxy, hydroxyl, C1-C4-alkoxy, amino, monomethylamino, dimethylamino, cyano or nitro groups and which may be fused to a benzene nucleus which may be unsubstituted or mono- or disubstituted by halogen atoms, C1-C4-alkyl, hydroxyl, trifluoromethyl, C1-C4-alkoxy, amino, cyano or nitro groups, and may contain 1 nitrogen atom, or to a 5- or 6-membered ring, which may contain 1-2 oxygen atoms, A is NH or an oxygen atom, Y is CH2, CH2-CH2, CH2-CH2-CH2 or CH2-CH, Z is a nitrogen atom, carbon atom or CH, it being possible for the linkage between Y and Z also to be a double bond, and n is 2, 3 or 4, and the physiologically tolerated salts thereof.

3-substituted pyrido [3',4':4,5] Thieno [2,3-d] pyrimidine derivatives, and production and use of the same

PCT No. PCT/EP98/03231 Sec. 371 Date Dec. 8, 1999 Sec. 102(e) Date Dec. 8, 1999 PCT Filed May 29, 1998 PCT Pub. No. WO98/56793 PCT Pub. Date Dec. 17, 19983-Substituted 3,4,5,6,7,8-hexahydropyrido [3',4':4,5]-thieno[2,3-d]pyrimidine derivatives of the formula I where R1 is a hydrogen atom, a C1-C4-alkyl group, an acetyl group, a phenylalkyl C1-C4 radical, the aromatic system being unsubstituted or substituted by halogen, C1-C4-alkyl, trifluoromethyl, hydroxyl, C1-C4-alkoxy, amino, cyano or nitro groups, or is a phenylalkanone radical, it being possible for the phenyl group to be substituted by halogen, R2 is a phenyl, pyridyl, pyrimidinyl or pyrazinyl group which is unsubstituted or mono- or disubstituted by halogen atoms, C1-C4-alkyl, trifluoromethyl, trifluoromethoxy, hydroxyl, C1-C4-alkoxy, amino, monomethylamino, dimethylamino, cyano or nitro groups and which may be fused to a benzene nucleus which can be unsubstituted or mono- or disubstituted by halogen atoms, C1-C4-alkyl, hydroxyl, trifluoromethyl, C1-C4-alkoxy, amino, cyano or nitro groups and may contain 1 nitrogen atom, or to a 5- or 6-membered ring which may contain 1-2 oxygen atoms, A is NH or an oxygen atom, Y is CH2, CH2-CH2, CH2-CH2-CH2 or CH2-CH, Z is a nitrogen atom, carbon atom or CH, it also being possible for the linkage between Y and Z to be a double bond, and n is 2, 3 or 4, and the physiologically tolerated salts thereof.