lergotrile lergotrile lergotrile (inn, usan) is an ergoline derivative which acts as a dopamine receptor agonist. it was developed for the treatment of parkinson's disease, but failed in clinical trials due to liver toxicity. lergotrileclinical dataother namesly-79907; 2-chloro-6-methylergoline-8β-acetonitrileidentifiers iupac name 2-quinolin-9-yl]acetonitrile cas number36945-03-6 ypubchem cid6918447chemspider5293644uniio68jxu1w09keggd04693chemblchembl80937chemical and physical dataformulac17h18cln3molar mass299.80 g·mol−13d model (jsmol)interactive image smiles cn1c(c21cc3=c(nc4=cc=cc2=c34)cl)cc#n inchi inchi=1s/c17h18cln3/c1-21-9-10(5-6-19)7-12-11-3-2-4-14-16(11)13(8-15(12)21)17(18)20-14/h2-4,10,12,15,20h,5,7-9h2,1h3/t10-,12-,15-/m1/s1key:jkahwgptnvutnb-ixpvhaazsa-n