(2012/05/21)
3-[4-(1-tert-butoxycarbonylpiperidin-4-ylidene)-9,10-dihydro-4H-1-thiabenzo[f]azulen-2-yl]acrylic acid
3-[4-(1-ethoxycarbonylpiperidin-4-ylidene)-9,10-dihydro-4H-1-thiabenzo[f]azulen-2-yl]acrylic acid
3-[4-(1-tert-butoxycarbonylpiperidin-4-ylidene)-4H-1-thiabenzo[f]azulen-2-yl]propionic acid
4-(9,10-dihydro-benzo[4,5]cyclohepta[1,2-b]thiophen-4-ylidene)-piperidine-1-carboxylic acid ethyl ester
ethyl 3-[4-(1-tert-butoxy-carbonylpiperidin-4-ylidene)-4H-1-thiabenzo[f]azulen-2-yl]-propionate