tert-Butyl3-(4-Chlorobenzyl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)azetidine-1-carboxylate ≥90%(HPLC) 2507954-86-9 C₂₁H₃₁BClNO₄ 407.74 g./mol $229.65 View