Thromboxane receptor active analogues based on the 6-oxabicyclo[3.2.1]octane ring system
作者:G Muir、RL Jones、SG Will、T Winwick、V Peesapati、NH Wilson、N Griffiths、WV Nicholson、P Taylor、L Sawyer、AJ Blake
DOI:10.1016/0223-5234(93)90092-s
日期:1993.1
Prostanoid analogues with a 6-oxabicyclo[3.2.1]octane ring and 3 different types of omega-chain have been synthesized and evaluated for biological activity on thromboxane A2 (TXA2) receptors and prostaglandin I2 (PGI2) receptors. The standard omega-chain analogue 34b is a TXA2 receptor agonist approximately 10-fold less potent than U46619 3, the standard agonist. The O-diphenyl-methyloximino-omega'-chain analogue 32 gives a PGI2-like agonist almost-equal-to 5-fold less active than EP 157, the most active molecule in this class. Conversely, 4-arylsemicarbazone omega-chain analogues 35a and 35b show TXA2 antagonism comparable to that obtained with bicyclo[2.2.2]octane and bicyclo[2.2. 1]heptane systems containing this type of omega-chain (eg EP 092).