Acylation of acid chloride 2-Fluorobenzoyl chloride [393-52-2] (1) with glycidol (2) produces the ester 2,3-Epoxypropyl 2-Fluorobenzoate [85515-51-1] (3). Reaction of that intermediate with amine (2-Amino-2-methyl-propyl)-urea [87484-83-1] (4) obtained by reaction of 1,1-dimethylethylenediamine with urea, gives flestolol (5).
References
^Quon, CY; Stampfli, HF (1993). "Biochemical characterization of flestolol esterase". Research communications in chemical pathology and pharmacology. 81 (3): 309–22. PMID8235065.
^Kam, Sheung Tsam; Matier, William L.; Mai, Khuong X.; Barcelon-Yang, Cynthia; Borgman, Robert J.; O'Donnell, John P.; Stampfli, Herman F.; Sum, Check Y.; Anderson, William G. (1984). "[(Arylcarbonyl)oxy]propanolamines. 1. Novel .beta.-blockers with ultrashort duration of action". Journal of Medicinal Chemistry. 27 (8): 1007. doi:10.1021/jm00374a013. PMID6146718.
^Agustin Escobar, Dietmar M. Wagenknecht, Abu S. Alam, WO1985004581 (1985 to American Hospital Supply Corporation).