The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Catalytic Asymmetric Synthesis of Esomeprazole by a Titanium Complex with a Hexa-aza-triphenolic Macrocycle Ligand》. Authors are Song, Weiguo; Dong, Liangjun; Zhou, Yuhan; Fu, Yongqiang; Xu, Wenfang.The article about the compound:5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazolecas:73590-85-9,SMILESS:CC1=CN=C(CSC2=NC3=CC(OC)=CC=C3N2)C(C)=C1OC).Category: ethers-buliding-blocks. Through the article, more information about this compound (cas:73590-85-9) is conveyed.
An efficient synthesis of esomeprazole I via catalytic asym. oxidation of 1H-benzimidazolyl pyridinylmethyl sulfide by a titanium complex with a hexa-aza-triphenolic macrocycle ligand is described. Esomeprazole was prepared with 99.6% ee, which meets the high requirement of the European Pharmacopeia on enantiomeric purity.
From this literature《Catalytic Asymmetric Synthesis of Esomeprazole by a Titanium Complex with a Hexa-aza-triphenolic Macrocycle Ligand》,we know some information about this compound(73590-85-9)Category: ethers-buliding-blocks, but this is not all information, there are many literatures related to this compound(73590-85-9).
Reference:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem