tert-butyl benzyl(pent-4-yn-1-yl)carbamate
tert-butyl benzyl(5-(tert-butyldimethylsilyl)pent-4-yn-1-yl)carbamate
N-benzyl-5-(tert-butyldimethylsilyl)pent-4-yn-1-amine
tert-butyl benzyl(6-hydroxyoct-4-yn-1-yl)carbamate
8-(benzylamino)oct-4-yn-3-ol