1-benzyl 3-ethyl (E)-5-(3-(((4-methoxybenzyl)oxy)methyl)pent-2-en-1-yl)-4-oxopyrrolidine-1,3-dicarboxylate

benzyl (E)-3-(3-(((4-methoxybenzyl)oxy)methyl)pent-2-en-1-yl)-1,3-dihydro-2H-pyrrolo[3,4-b]quinoline-2-carboxylate

1-ethyl-4-(tetrahydro-2-pyranyloxy)-2-butyn-1-ol

1-ethyl-3-formyl-2-propynyl benzoate

1-ethyl-4-hydroxy-2-butynyl benzoate