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A series of acyl derivatives of 3-amino-1-phenyl-4,5-dihydro-1H-pyrazol-5-one as potential human 5-LOX and COX 1 and COX-2 inhibitors structurally related to the 1-phenyl-3-pyrazolidinone (phenidone, 1) have been synthesized and the activity against COX-1, COX-2 and human 5-LOX enzymes has been evaluated. All the derivatives showed poor activity against enzymes. These data, together with our previous...
A new series of potential human 5-LOX inhibitors structurally related to the 1-phenyl-3-pyrazolidinone (phenidone, 2) has been synthesized and the activity against COX-1, COX-2, and human 5-LOX enzymes has been evaluated. In contrast with literature data, we observed that phenidone resulted to be inactive against human 5-LOX, while retains its activity against cyclooxygenases in a micromolar range...
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