Related Products of 119139-23-0, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.119139-23-0, Name is 3,4-Di(1H-indol-3-yl)-1H-pyrrole-2,5-dione, molecular formula is C20H13N3O2. In a Article£¬once mentioned of 119139-23-0
Design of benzophenone-containing photoactivatable linear vasopressin antagonists: Pharmacological and photoreactive properties
We designed and synthesized new photoactivatable linear vasopressin analogues containing benzophenone photophores. All compounds were monitored and purified using RP-HPLC and characterized by mass spectrometry. Affinity and selectivity were determined in CHO cells expressing either human V1a, V1b or V2 receptor subtypes. Within the series, compounds 6 (PhCH2CO-LBpa-Phe-Gln-Asn-Arg-Pro-Arg-Tyr(3I)-NH2) and 9 (PhCH2CO-DBpa-Phe-Gln-Asn-Arg-Pro-Arg-Tyr(3I)-NH2), containing a benzoylphenylalanine residue (Bpa), were selected and their antagonistic properties determined (Kinact = 1.87 and 0.35 nM, respectively). The dissociation constant of the most potent candidate (compound 9) was further calculated from saturation experiments using the 125I derivative (Kd = 0.07 ¡À 0.01 nM). Photolabeling experiments using radioactive compound 9 as a probe were specific and UV-dependent and allowed the identification of two bands at molecular masses around 85-90 kDa and 46 kDa, respectively, as previously described using two photoreactive linear azidopeptide antagonists (Phalipou et al. J. Biol. Chem. 1997, 272, 26536-26544 and Phalipou et al. J. Biol. Chem. 1999, 274, 23316-23327). The results suggest therefore that compound 9 is a potent new tool for the accurate mapping of the human V1a receptor antagonist binding site.
A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 119139-23-0
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Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis¡ªI. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis