Darrell E. O'Brien - Concepedia

Author

Darrell E. O'Brien

MRIGlobal

Also Known As

Darrell E. O'Brien, Darrell E. O'brien, Darrell O'Brien

Publications

727

Citations

H-Index

Concepts

All Affiliations

MRIGlobal

About

Darrell E. O'Brien is an author at MRIGlobal specializing in pharmacology, organic chemistry, and natural sciences.

Top Concepts

#	Concept	H-Index	Publications	Citations
1	Natural Sciences	11	14	408
2	Biochemistry	11	13	412
3	Medicine	10	11	354
4	Engineering	2	2	55
5	Biomolecular Engineering	2	2	55

Darrell E. O'Brien

Publications

651

Citations

H-Index

Page 1

	Year	Citations
Purine analog inhibitors of xanthine oxidase ‐ structure activity relationships and proposed binding of the molybdenum cofactor Roland K. Robins, Ganapathi R. Revankar, Darrell E. O'Brien, Journal of Heterocyclic Chemistry New PhenylMolybdenum CofactorPharmacotherapyChemical BiologyPharmaceutical Chemistry	1985	104
3-Substituted 5,7-dimethylpyrazolo[1,5-a]pyrimidines, 3',5'-cyclic AMP phosphodiesterase inhibitors Thomas Novinson, R. James Hanson, Mary K. Dimmitt, Journal of Medicinal Chemistry Pharmaceutical ScienceAltmetric Attention ScorePharmacotherapyHeterocycle ChemistryChemical Biology	1974	73
Synthesis and antitrichomonal activity of certain pyrazolo[1,5-a]pyrimidines K. SENGA, Thomas Novinson, Robert H. Springer, Journal of Medicinal Chemistry	1975	42
The synthesis and chemical reactions of certain pyrazolo[1,5‐<i>a</i>]‐1,3,5‐triazines J. Kobe, Roland K. Robins, Darrell E. O'Brien Journal of Heterocyclic Chemistry Methyl GroupDiversity Oriented SynthesisEngineeringHeterocyclicBiochemistry	1974	38
Adenosine cyclic 3',5'-monophosphate phosphodiesterase inhibitors. 2. 3-Substituted 5,7-dialkylpyrazolo[1,5-a]pyrimidines Thomas Novinson, Jon P. Miller, Mieka B. Scholten, Journal of Medicinal Chemistry	1975	38
Synthesis and enzymic activity of some novel xanthine oxidase inhibitors. 3-Substituted 5,7-dihydroxypyrazolo[1,5-a]pyrimidines Robert H. Springer, Mary K. Dimmitt, Thomas Novinson, Journal of Medicinal Chemistry	1976	36
Studies on Methylglyoxal Bis(guanylhydrazone)<sup>1</sup> Analogs. II. Structural Variations on Methylglyoxal Bis(guanylhydrazone)<sup>2</sup> Fred Baiocchi, C. C. Cheng, William J. Haggerty, Journal of Medicinal Chemistry Structural VariationsPharmaceutical ScienceChemical AnalysisAltmetric Attention ScoreOrganic Chemistry	1963	35
Potential Purine Antagonists. XIX. Synthesis of Some 9-Alkyl(aryl)-2-amino-6-substituted Purines and Related V-Triazolo [d]pyrimidines<sup>1</sup> Henry C. Koppel, Darrell E. O'Brien, Roland K. Robins Journal of the American Chemical Society Molecular PharmacologyMedicinal ChemistryPotential Purine AntagonistsPharmaceutical SciencePharmacological Study	1959	32
Synthesis and enzymic activity of 6-carbethoxy- and 6-ethoxy-3,7-disubstituted pyrazolo[1,5-a]pyrimidines and related derivatives as adenosine cyclic 3',5'-phosphate phosphodiesterase inhibitors Robert H. Springer, M. B. SCHOLTEN, Darrell E. O'Brien, Journal of Medicinal Chemistry Low Km EnzymeBiochemistryRelated DerivativesMedicinePharmacological Agent	1982	31
Synthesis and enzymic activity of various substituted pyrazolo[1,5-a]-1,3,5-triazines as adenosine cyclic 3',5'-phosphate phosphodiesterase inhibitors K. SENGA, Darrell E. O'Brien, Mieka B. Scholten, Journal of Medicinal Chemistry	1982	30

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