The phrase "a number of substituted" is not correct in English as it lacks clarity and context.
It could be used in a context where you are discussing multiple items or elements that have been replaced or altered, but it needs to be rephrased for clarity.
Example: "A number of substituted variables were used in the equation to test different scenarios."
Alternatives: "several replacements" or "multiple substitutions".
A number of substituted catechols were obtained using the recombinant biocatalysts.
As part of a discovery effort aimed at identifying novel norepinephrine reuptake inhibitors (NRIs), a number of substituted morpholines were designed and synthesized.
It is shown that the technique is applicable to unsubstituted benzene and a number of substituted benzenes by quantitatively reproducing experimental values of mean optical polarizability and optical anisotropy simultaneously.
Pyranose dehydrogenase catalyzes the oxidation of free, nonphosphorylated sugars and the transfer of resulting electrons to a number of (substituted) quinones and complexed metal ions rather than to molecular oxygen.
Having established that the introduction of a benzoyl substituent at N 5) retained activity and affinity at the CB2R, and selectivity over the CB1R, a number of substituted analogues were next explored.
Following that operation in March 2011 Abidal was out for just seven weeks, returning to the team for the end-of-season run-in with a number of substitute appearances, although his only start was in the Champions League final victory over Manchester United when he was given the honour of lifting the trophy.
The asphaltenes from the storage deposit are particularly differentiated with respect to the other two ones, featuring a higher polarity, a greater heteroatom content, and a lower aromaticity involving a smaller number of substituted aromatic structures.
Pyrimidines are found to be antagonists of folic acid; hence, a large number of substituted pyrimidines have been synthesized as antifolates and it was eventually proved that these pyrimidines are inhibitors of dihydrofolate reductase (DHFR) [19].
The electrooxidative behaviour of tetraphenylcyclopentadienone (tetracyclone) and a number of its substituted derivatives have been studied by cyclic voltammetry.
A number of alkyl substituted betamethasone 17α-carbamates were identified with excellent affinity for the glucocorticoid receptor (e.g., 7, GR IC50 5.1 nM) and indicated dissociated profiles in functional assays of transactivation (rat tyrosine aminotransferase, TAT, and rat glutamine synthetase, GS) and transrepression (human A549 cells, MMP-1 assay).
In addition, a number of compounds substituted at the primary amino group display improved activity relative to tranylcypromine 2 and are selective for the KDM1 family over related amine oxidases [67 69].
