... For these studies we synthesized the N1'-benzyl derivative of HBzT, 18 BHT (4, Scheme 4 ... Synthesis of N1'-Benzyl-2-(1-hydroxybenzyl)thiamin (4). 2-(1-Hydroxybenzyl)thiamin chloride ... reaction of HBzT with benzyl bromide in DMSO, following the general procedure of Karimian. ...