Definition: A group of ISOQUINOLINES in which the nitrogen containing ring is protonated. They derive from the non-enzymatic Pictet-Spengler condensation of CATECHOLAMINES with ALDEHYDES.
Other names Tetrahydro Isoquinolines; Tetrahydro-Isoquinolines; 1,2,3,4-Tetrahydroisoquinolines
trequinsin [ HL 725,2,3,6,7-tetrahydro-9,10-dimethoxy-3-methyl-2-((2,4,6-trimethylphenyl)imino)-4H-pyrimido(6,1-a)isoquinolin-4-one, monohydrochloride,HL-725,trequinsin hydrochloride ] RN given refers to parent cpd; structure given in first source
