A series of pi-extended bowl-shaped pi-conjugated compounds were synthesized from sumanene and characterized, and among them the terthiophene derivative showed a remarkable red-shifted absorption and small band gap, which wa rationalized by molecular orbital calculation.

HC is a potent COX-1/COX-2 inhibitor, ROS scavenger and inhibits platelet calcium signaling, TXB(2) production and aggregation. HC could be a potential therapeutic agent for prevention and treatment of atherosclerosis and other cardiovascular diseases through its anti-inflammatory and antiplatelet effects, without effects on haemostatic functions.

Other polycyclic compounds Q 1150 Synthesis and Characterization of π-Extended Bowl-Shaped π-Conjugated Molecules. -Sumanene (I) is used for the preparation of title compounds (III), which are obtained as C3 symmetric/unsymmetric diastereomeric mixtures. (IIIe) shows a remarkable red-shifted absorption. -(AMAYA, T.; MORI, K.; WU, H.-L.; ISHIDA, S.; NAKAMURA, J.-I.; MURATA, K.; HIRAO*, T.; Chem.

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