flestolol flestolol flestolol is a short-acting beta adrenergic receptor antagonist. flestolol names iupac name 3--2-hydroxypropyl 2-fluorobenzoate identifiers cas number 87721-62-8 y 3d model (jsmol) interactive image chemspider 50465 kegg d04190 pubchem cid 55885 unii li02075e1w y inchi inchi=1s/c15h22fn3o4/c1-15(2,9-18-14(17)22)19-7-10(20)8-23-13(21)11-5-3-4-6-12(11)16/h3-6,10,19-20h,7-9h2,1-2h3,(h3,17,18,22)key: zploqflcmviwry-uhfffaoysa-n smiles cc(c)(cnc(=o)n)ncc(coc(=o)c1=cc=cc=c1f)o properties chemical formula c15h22fn3o4 molar mass 327.356 g·mol−1 except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). infobox references synthesis flestolol synthesis: acylation of glycidol (2) with the acid chloride 1 produces the ester 3. reaction of that intermediate with amine 4, obtained by reaction of 1,1-dimethylethylenediamine with urea, gives flestolol (5).