Compounds of formula (IA) and formula (IB), which are useful as inhibitors of indoleamine 2,3-dioxygenase and/or tryptophan dioxygenase, are provided. Also provided are pharmaceutical compositions, kits comprising said compounds, and methods and uses pertaining to said compounds.
Stereochemistry of β-Deuterium Isotope Effects on Amine Basicity
作者:Charles L. Perrin、Brian K. Ohta、Joshua Kuperman、Jordan Liberman、Máté Erdélyi
DOI:10.1021/ja0511927
日期:2005.7.1
Secondary β-deuterium isotope effects on aminebasicities are measured using a remarkably precise NMR titration method. Deuteration is found to increase the basicity of methylamine, dimethylamine, benzylamine, N,N-dimethylaniline, 2-methyl-2-azanorbornane, and pyrrolizidine. The increase in dimethylamine arises entirely from enthalpy, contrary to a previous report. The method permits a determination