1-(5-methyl-2,5-dihydrothiophen-3-yl)pyrrolidine

1-(2-methyl-2,3-dihydrothiophen-4-yl)pyrrolidine

4-(5-methyl-2,5-dihydrothiophen-3-yl)morpholine

4-(2-methyl-2,3-dihydrothiophen-4-yl)morpholine

methyl 2-methylazuleno[1,2-b]thiophene-4-carboxylate