(1S-(1alpha,2beta(Z),3alpha(1E,3S*),5alpha))-7-(3-(3-Hydroxy-1-octenyl)-6,6-dimethylbicyclo(3.1.1)hept-2-yl)-5-heptenoic acid 71154-83-1 Pinane thromboxane A2 Pinane-thromboxane A2