Electric Literature of C5H14Cl2N2On October 1, 2020 ,《Chlorine substituents and linker topology as factors of 5-HT6R activity for novel highly active 1,3,5-triazine derivatives with procognitive properties in vivo》 was published in European Journal of Medicinal Chemistry. The article was written by Sudol, Sylwia; Kucwaj-Brysz, Katarzyna; Kurczab, Rafal; Wilczynska, Natalia; Jastrzebska-Wiesek, Magdalena; Satala, Grzegorz; Latacz, Gniewomir; Gluch-Lutwin, Monika; Mordyl, Barbara; Zeslawska, Ewa; Nitek, Wojciech; Partyka, Anna; Buzun, Kamila; Doroz-Plonka, Agata; Wesolowska, Anna; Bielawska, Anna; Handzlik, Jadwiga. The article contains the following contents:
This study had supplied highly potent 5-HT6R agents with procognitive effects, which represent an original chem. class of 1,3,5-triazines, different than widely studied sulfone and indole-like 5-HT6R ligands. The new compounds I (R1 = Ph, 2,3-Cl2C6H3, 2,5-Cl2C6H3, 3,4-Cl2C6H3, 3,5-Cl2C6H3, 2,4-Cl2C6H3; R2 = H, Me, Et, n-Pr, n-Bu, X = nothing; R2 = H, X = CH2CH2) were rationally designed as modifications of lead, 4-(1-(2-chlorophenoxy)ethyl)-6-(4-methylpiperazin-1-yl)-1,3,5-triazin-2-amine, involving an introduction of: (i) two chlorines at the benzene ring and (ii) varied linkers joining the triazine ring to aromatic ethers. Synthesis, in vitro and in vivo biol. tests and computer-aided SAR anal. for new compounds were carried out. Most of the new triazines displayed high affinity and selectivity toward 5-HT6R with respect to 5-HT2AR, 5-HT7R and D2R. The crystallog.-supported docking studies, including quantum-polarized ligand docking (QPLD), indicated that chlorine atoms might be involved in different type of halogen bonding, however, the linker properties seem to predominately affect the 5-HT6R affinity. Compound I (R1 = 2,5-Cl2C6H3; R2 = Et; X = nothing), which displayed: the highest affinity (Ki = 6 nM), very strong 5-HT6R antagonistic action (KB = 27 pM), procognitive effects in vivo in novel object recognition (NOR) test in rats, a very good permeability in PAMPA model and satisfying safety in vitro, was identified as the most potent 1,3,5-triazine agent so far, useful as a new lead for further research. In the experiment, the researchers used 1-Methylpiperazine dihydrochloride(cas: 34352-59-5Electric Literature of C5H14Cl2N2)
1-Methylpiperazine dihydrochloride(cas: 34352-59-5) is used in the preparation of 2-(4-Methyl-1-piperazinylmethyl)acrylophenone(MPMAP), 1-methylpiperazine-1,4-diium tetrachloridozincate hemihydrate, 2-(4-Methyl-1-piperazinylmethyl)acrylophenone(MPMAP), an antimicrotubular drug..Electric Literature of C5H14Cl2N2
Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics