16154-78-2Relevant academic research and scientific papers
Process for the preparation of pirlindole hydrochloride
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, (2008/06/13)
Process for the synthesis of pirlindole hydrochloride of formula (I) characterized in that the 6-methyl-1-(2-chloroethyl-imino)-1,2,3,4-tetrahydrocarbazol hydrochloride cyclizes to yield 1,2,5,6-tetrahydro-8-methyl-pyrazine[3,2,1-j,k]-4H-carbazol of formula (VI) which is subjected to reduction.
First Preparative Enantiomer Resolution of Pirlindole, a Potent Antidepressant Drug
De Tullio, Pascal,Felikidis, Apostolos,Pirotte, Bernard,Liegeois, Jean-Francois,Stachow, Monique,Delarge, Jacques,Ceccato, Attilio,Hubert, Philippe,Crommen, Jacques,Geczy, Joseph
, p. 539 - 547 (2007/10/03)
Pirlindole is an antidepressant drug. It acts principally as reversible inhibitor of monoamine oxidase-A (RIMA) and appears relatively potent in comparison with reference drugs. Pirlindole possesses stereogenic center but is generally used as racemate. In this work, the first preparative resolution of its enantiomeric couple is described. Whereas selective crystallization of salts of chiral acid failed, two asymmetric synthetic pathways were also examined; however, without success. Finally separation and isolation of enantiomers of pirlindole was completed by using the derivatization method coupled with preparative HPLC. Optical purity of each isomer was determined by chiral HPLC. The specific rotation of each antipode was also determined.
New Simple Laboratory Method for the Synthesis of Pirazidol
Grinev, A. N.,Krichevskii, E. S.,Romanova, O. B.
, p. 1084 - 1085 (2007/10/02)
5,6-Dihydro-8-methyl-4H-pyrazinocarbazole was obtained by the reaction of α-bromoacetaldehyde dibutylacetal, ammonium acetate, and 1,2,3,4-tetrahydro-6-methyl-1-ketocarbazole in acetic acid.The reduction of 5,6-dihydro-8-methyl-4H-pyrazinocarbazole or its hydrochloride with sodium borohydride leads to 2,3,3a,4,5,6-hexahydro-8-methyl-1H-pyrazinocarbazole hydrochloride - the medicinal preparation pirazidol.
