| http://www.w3.org/ns/prov#value | - e n is an integer from 0 to 2 and R23 is alkyl, heteroalkyl, amino, monosubstituted amino or disubstituted amino), -(alkylene)-Z??? or -(alkyl)-CO-(alkylene)-Z??? wherein: [0031] Z??? is cyano; [0032] ???COOR24 where R24 is hydrogen or alkyl; [0033] ???CONR25; R26 where R25 and R26 independently represent hydrogen or alkyl, or R25 and R26 together with the nitrogen atom to which they are attached
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