diethyl 2-{2-(acetoxymethyl)-5-[3-(4-methoxybenzyloxy)propyl]-3-oxo-2,3-dihydrofuran-2-yl}-(Z)-but-2-enedioate

8-(4-methoxybenzyloxy)-oct-1-en-4-yn-3-one

ethyl 2-hydroxy-9-(4-methoxybenzyloxy)-3-methylene-4-oxonon-5-ynoate

7, 8-dimethoxy-2, 3-dihydropyrrolo[1, 2-b]isoquinolin-5(1H)-one

ethyl 6-hydroxy-2-hexynoate