72081-00-6Relevant academic research and scientific papers
Palladium catalyzed chloroethoxylation of aromatic and heteroaromatic chlorides: An orthogonal functionalization of a chloroethoxy linker
Petho, Bálint,Vangel, Dóra,Csenki, János T.,Zwillinger, Márton,Novák, Zoltán
supporting information, p. 4895 - 4899 (2018/07/15)
A novel disconnection based on cross-coupling chemistry was designed to access pharmaceutically relevant aryl-aminoethyl ethers. The developed palladium-catalyzed functionalization of aryl- and heteroaryl chlorides with a sodium tetrakis-(2-chloroethoxy) borate salt is orthogonal to the simple nucleophilic replacement of the chloro function of the ethylene linker. The transformation enables efficient 2-chloroethoxylation in the absence of an additional external base. Subsequent amine substitution of the alkyl halide affords 2-aminoethoxy arenes. The applicability of this method was demonstrated through the synthesis of various aryl- and heteroaryl-alkyl ethers, including the intermediates of marketed drug molecules.
Selective Thromboxane Synthetase Inhibitors. 1. 1--1H-imidazoles
Cross, Peter E.,Dickinson, Roger P.,Parry, M. John,Randall, Michael J.
, p. 1427 - 1432 (2007/10/02)
1-(2-Phenoxyethyl)-1H-imidazole was found to be an inhibitor of thromboxane (TxA2) synthetase, but it also inhibited the adrenal cytochrome P-450 enzyme steroid 11β-hydroxylase.The preparation of a series of analogues is described, and activity against TxA2 synthetase, PGI2 synthetase, cyclooxygenase, and steroid 11β-hydroxylase is discussed.Potency against TxA2 synthetase was increased by introduction of a carboxyl group at a suitable distance from the imidazole ring.A distance of 8.1-8.8 Angstroem between N-1 of the imidazole and the carboxyl carbon was found to be optimal.Introduction of a carboxyl group also had the effect of reducing activity against steroid 11β-hydroxylase.The most potent and selective compound was found to be 4-benzoic acid (14).
