Synthesis and Effects on the COX‐1 and COX‐2 Activity in Human Whole Blood ex vivo of Derivatives Containing the [1]Benzothienol‐[3, 2‐d]pyrimidin‐4‐one Heterocyclic System
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Methyl and phenyl derivatives containing the [1]Benzothieno [3, 2‐d]pyrimidin‐4‐one system have been synthesized and tested as inhibitors of COX‐1 and COX‐2 activities in human whole blood (HWB) ex vivo; all compounds turned out to be weak inhibitors of COX‐1 activity, as deduced from the TXB2 (thromboxane B) generation; the acid phenyl derivative 11 b was an interesting inhibitor of COX‐2 activity, as deduced from the PGE2 (prostaglandine E) generation.