Related Products of 51207-66-0, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.51207-66-0, Name is (S)-(+)-1-(2-Pyrrolidinylmethyl)pyrrolidine, molecular formula is C9H18N2. In a Article，once mentioned of 51207-66-0
The synthesis and ? receptor affinity of a series of conformationally restricted derivatives of 2-(1-pyrrolidinyl)-N-<2-(3,4-dichlorophenyl)ethyl>-N-methylethylenediamine (1) is described.The pyrrolidinyl (or N,N-dialkyl), ethylenediamine, N-alkyl, and phenylethyl portions of this ? receptor pharmacophore were restricted by its incorporation into 1,2-cyclohexanediamine-, pyrrolidine-, piperidine-, homopiperidine-, and tetrahydroisoquinoline-containing ligands.The ? receptor binding affinities of these compounds were determined using <3H>(+)-pentazocine in guinea pig brain homogenates.The synthesis of all but one class was achieved by acylation and alane reduction of the appropriate diamine precursors whose synthesis is also reported. ? receptor affinities ranged from 1.34 nM for 6,7-dichloro-2-<2-(1-pyrrolidinyl)ethyl>tetrahydroisoquinoline (12) to 455 nM for (1R,2R)-trans-N-<2-(3,4-dichlorophenyl)ethyl>-N-methyl-2-(1-pyrrolidinyl)cyclohexylamine <(-)-4>.In this displacement assay, (+)-pentazocine exhibited a Ki of 3.1 nM while DTG and haloperidol showed Ki values of 27.7 and 3.7 nM, respectively.The conformationally free parent compound 1 exhibited a Ki value of 2.1 nM.Comparison of both the ? receptor affinities and nitrogen atom geometry of the compounds revealed that a gauche relation of the nitrogen atoms of cis-1,2-cyclohexanediamines is not imperative for high affinity as we had previously thought.It is highly likely that nitrogen lone pair orientations and steric factors on the aliphatic portions of these ligands play a major role in the ? receptor binding of this pharmacophore.
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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI