mpmi (drug) mpmi (drug) 3-(n-methylpyrrolidin-3-ylmethyl)indole (mpmi) is a tryptamine derivative which acts as a serotonin receptor agonist. it has been studied as an analogue and trace impurity of the anti-migraine drug eletriptan but is otherwise little known. mpmiidentifiers iupac name 3--1h-indole cas number143321-54-4 y 143322-55-8 (r enantiomer)pubchem cid53870442chemspider68007055chemical and physical dataformulac14h18n2molar mass214.312 g·mol−13d model (jsmol)interactive image smiles cn1cccc1cc2=cnc3=cc=cc=c32 inchi inchi=1s/c14h18n2/c1-16-8-4-5-12(16)9-11-10-15-14-7-3-2-6-13(11)14/h2-3,6-7,10,12,15h,4-5,8-9h2,1h3key:hctcdeamcnsard-uhfffaoysa-n