333985-45-8

Upstream product

• 31252-42-3 4-benzylpyperidine 
• 62-53-3 aniline 
• 107-02-8 acrolein 

Downstream Products

• 304857-53-2 N-[3-(4-benzylpiperidin-1-yl)propyl]-5-oxo-N-phenylpyrrolidine-3-carboxamide 

Relevant academic research and scientific papers

CCR5 antagonists as anti-HIV-1 agents. Part 3: Synthesis and biological evaluation of piperidine-4-carboxamide derivatives

Replacement of the 5-oxopyrrolidin-3-yl fragment in the previously reported lead structure with a 1-acetylpiperidin-4-yl group led to the discovery of a novel series of potent CCR5 antagonists. Introduction of small hydrophobic substituents on the central phenyl ring increased the binding affinity, providing low to sub-nanomolar CCR5 antagonists. The selected compound 11f showed excellent antiviral activity against CCR5-using HIV-1 replication in human peripheral blood mononuclear cells (EC50 = 0.59 nM) and an acceptable pharmacokinetic profile in dogs.

CCR5 antagonists as anti-HIV-1 agents. Part 2: Synthesis and biological evaluation of N-[3-(4-benzylpiperidin-1-yl)propyl]-N,N′- diphenylureas

We have previously reported the novel lead compound 1a as a CCR5 antagonist for treatment of HIV-1 infection. SAR studies on incorporating various acyl groups as a replacement for the 5-oxopyrrolidine-3-carbonyl group of the lead structure resulted in the

CCR5 antagonists as anti-HIV-1 agents. 1. Synthesis and biological evaluation of 5-oxopyrrolidine-3-carboxamide derivatives

A novel lead compound, N-{3-[4-(4-fluorobenzoyl)piperidin-1-yl]propyl}-1- methyl-5-oxo-N-phenylpyrrolidine-3-carboxamide (1), was identified as a CCR5 antagonist by high-throughput screening using [125I]RANTES and CCR5-expressing CHO cells. The IC50 value of 1 was 1.9 μM. In an effort to improve the binding affinity of 1, a series of 5-oxopyrrolidine-3- carboxamides was synthesized. Introduction of 3,4-dichloro substituents to the central phenyl ring (10i, IC50=0.057 μM; 11b, IC 50=0.050 μM) or replacing the 1-methyl group of the 5-oxopyrrolidine moiety with a 1-benzyl group (12e, IC50=0.038 μM) was found to be effective for improving CCR5 affinity. Compound 10i, 11b, and 12e also inhibited CCR5-using HIV-1 envelope-mediated membrane fusion with IC50 values of 0.44, 0.19, and 0.49 μM, respectively.

Cyclic amine compounds as CCR5 antagonists

A compound of formula (I) (wherein R1is a hydrogen atom, a hydrocarbon group which may be substituted, a non-aromatic heterocyclic group which may be substituted, R2is a hydrocarbon group which may be substituted, a non-aromatic heterocyclic group which may be substituted, or R1and R2may combine to each other together with A to form a heterocyclic group which may be substituted; A is N or N+—R5.Y?(R5is a hydrocarbon group; Y?is a counter anion); R3is a cyclic hydrocarbon group which may be substituted or a heterocyclic group which may be substituted; n is 0 or 1; R4is a hydrogen atom, a hydrocarbon group which may be substituted, a heterocyclic group which may be substituted, an alkoxy group which may be substituted, an aryloxy group which may be substituted, or an amino group which may be substituted, E is a divalent aliphatic hydrocarbon group which may be substituted by group(s) other than oxo; G1is a bond, CO or SO2; G2is CO, SO2, NHCO, CONH or OCO; J is methine or a nitrogen atom; and each of Q and R is a bond or a divalent C1-3aliphatic hydrocarbon which may be substituted; provided that J is methine when G2is OCO, that one of Q and R is not a bond when the other is a bond and that each of Q and R is not substituted by oxo group(s) when G1is a bond) or a salt thereof has a potent CCR5 antagonistic activity and can be advantageously used for the treatment or prevention of infectious disease of various HIV in human (e.g. AIDS).

CYCLIC AMIDE COMPOUNDS, PROCESS FOR THE PREPARATION OF THE SAME AND USES THEREOF

A compound of the formula: wherein R1 is a hydrocarbon group, R2 is a hydrocarbon group having 2 or more carbon atoms, where R1 and R2 may in combination form, together with an adjacent nitrogen atom, a ring optionally having a substituent or substituents, R3 is a hydrocarbon group optionally having a substituent or substituents or a heterocyclic group optionally having a substituent or substituents, R4 is a hydrogen atom, a hydrocarbon group, a heterocyclic group and the like, E is a divalent chain hydrocarbon group and the like, G is CO or SO2, J is a nitrogen atom, a methine group and the like, and Q and R are each a divalent chain C1-3 hydrocarbon group and the like, and a salt thereof show a superior CCR5 antagonistic activity and are useful as agents for the prophylaxis or treatment of HIV infection of human peripheral blood mononuclear cells, particularly AIDS.