methyl 1,3-dihydroazuleno[1,2-c]thiophene-9-carboxylate

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

methyl azuleno[1,2-c]thiophene-9-carboxylate

2-methylazuleno[1,2-b]thiophene

methyl 3-decylazulene-1-carboxylate