Intellex Acquires Expert by Big Village

We're thrilled to announce that Intellex has acquired Expert by Big Village, effective March 22, 2024. This strategic move enhances our capabilities and strengthens our commitment to delivering exceptional solutions to our customers.

Stay tuned for more updates on how this acquisition will benefit our clients and experts.

For inquiries or more information, please contact us at


Expert Details

Medicinal Chemistry/ Synthetic Organic Chemistry-Research and Patent Litigation

ID: 736259 New Jersey, USA

Request Expert

Experienced Medicinal Chemist and Consultant: expert at synthetic organic chemistry, pharmaceutical chemistry, pharmaceutical patent litigation, patent analysis:
1) Eight years of consulting experience, beginning in Jan. 2012, writing expert reports following patent analysis covering obviousness, claims validation, enablement; depositions given. Cases include an ANDA Hatch Waxman case as expert consultant; a case dedicated to claims validation and enablement that went on for two years, monthly reports; another ANDA case where obviousness was a crucial factor.
2) Seven INDs (investigational new drugs) in oncology, immunology, metabolic and antiinfectives areas during career.
3) Inventor of saxagliptin at BMS that was a breakthrough drug for type II diabetes as a sole therapy.
4) Inventor of lead molecule for bcl-2 inhibitor program venetoclax at Abbott Labs that caused the regression of solid tumors in preclinical oncology studies.
5) As Lexicon director of med chem, led team of 16 medicinal chemists in small molecule effort to IND and Phase IIb clinical trials for rheumatology, arthritis, and psoriasis.


Year Degree Subject Institution
Year: 1995 Degree: Postdoctoral Subject: Synthetic Organic Chemistry Institution: Princeton University
Year: 1992 Degree: PhD Subject: Synthetic Organic Chemistry Institution: University of California, Irvine
Year: 1986 Degree: BS Subject: Chemistry Institution: University of Connecticut

Work History

Years Employer Title Department
Years: 2012 to Present Employer: Undisclosed Title: Director Department: Consulting
Consultant for pharmaceutical patents for 8 years–claims validation on COM, obviousness, enablement arguments, reports, depositions, testimony. Biotech consulting. Wrote Phase II NIH SBIR for Covid (Funded) and NIH R21 for gene transfection (submitted). Also, managing in life toxicology studies at Charles River Labs. Also, consulting for drug discovery-all aspects--I am a solid drug discovery scientist as a past Director level medicinal chemist.
Years Employer Title Department
Years: 2012 to 2020 Employer: Rutgers University Title: Assoc. Professor / Director Department: Chemistry
At Rutgers–> Expert led MD&S group of 7 chemists to execute programs to obtain preliminary results for NIH R01 grant proposals written. Collaborated with PIs to be awarded six funded R01s, 1 DoD, and 1 R21 in six years where writing proposals with PIs was his main function. Managed CROs SaiLife for PK/PD and Aptuit or Piramal for chemistry support.
Years Employer Title Department
Years: 2003 to 2012 Employer: Lexicon Pharmaceuticals Title: Director Department: Discovery Chemistry
At Lexicon–> Director of Immunoscience medicinal chemistry: led team of 16 FTE to advance 3 INDs to Phase IIB (LX2931, LX2932) for RA/UC/psoriasis and kinase inhibitor (LX2311) for MS cGLP/GMP through IND enabling studies. Use of biomarkers in mechanistic studies for efficacy from knockouts; Analytical chemistry (NMR, LCMS/MS, HPLC, GCMS, UV-vis); CMC section of INDs written. Phase 1-3 INDs. Managed outsourced chemistry via CROs; Aptuit and SaiLife.
Years Employer Title Department
Years: 1999 to 2003 Employer: Bristol-Myers Squibb Title: Principal Investigator Department: Discovery Chemistry
• Inventor of ONGLYZA (saxagliptin), FDA Approval 2009 for type II diabetes, J Med Chem 2005, 48, 5025-5037. Expert in Discovery, all aspects; biomarkers, ex-vivo mechanism-based assays for PK-PD.
• Member of BMS Due Diligence team to evaluate biotech research
Years Employer Title Department
Years: 1995 to 1999 Employer: Abbott Labs Title: Investigator Department: Discovery Chemistry
• Inventor of lead acylsulfonamide for bcl-2 inhibitor program that led to acylsulfonamide VENCLEXTA(venetoclax, FDA approval 2015 for CML, cancer).

Career Accomplishments

Associations / Societies
American Chemical Society, Division of Organic Chemistry, Division of Medicinal Chemistry
American Association of the Advancement of Science
American Society of Pharmacology and Experimental Therapeutics
American Medical Writers Association
Licenses / Certifications
Expert in Organic Chemistry 1992
Professional Appointments
Director of Medicinal Chemistry, Immunoscience, Lexicon Pharmaceuticals
Senior Investigator, Bristol Myers-Squibb Drug Discovery Division
Investigator, Abbott Labs, Drug Discovery Division
Awards / Recognition
Bristol-Myers Squibb Outstanding Investigator-discovery of saxagliptin
NIH Postdoctoral Fellowship at Princeton University Dept of Chemistry (3 years)
Outstanding Undergraduate Research Thesis, UConn
Publications and Patents Summary
Publications: 41 peer-reviewed publications

Discovery of Saxagliptin: A Highly Potent, Long-Acting, Orally Active DPP4 Inhibitor for the Treatment of Type 2 Diabetes

Targeting bone morphogenetic protein receptor 2 was found to sensitize lung cancer cells to TRAIL by increasing cytosolic Smac/DIABLO and by the downregulation of X-linked inhibitor of apoptosis protein -Oncology program targeting BMPR2 Cell Communication and Signaling

Genetic and Pharmacologic Inhibition of MST1 Blocks Lymphocyte Function-Antirheumatic drug that was applied to rheumatoid arthritis and multiple schlerosis, Ann Rheum Dis,

Discovery of a Potent Inhibitor of the Antiapoptotic Protein Bcl-xL from NMR and Parallel Synthesis to identify the lead molecule for the bcl-2 program

An inhibitor of Bcl-2 family proteins (ABT-737) induces regression of solid tumours in mouse models of cancer.

Patents: 35 issued US Patents

Mitochondrial Uncouplers for the treatment of metabolic diseases and cancer United States Patent

MST1 kinase inhibitors-patent describes uses for rheumatoid arthritis, psoriasis and behaves as a classic kinase, United States Patent

Methods of Treating Rheumatoid Arthritis and other autoimmune diseases, United States Patent

Patent that holds the discovery of Venclexta (venetoclax) as a cancer drug that cures solid tumors United States Patent

Cyclopropyl-fused pyrrolidine-based inhibitors of dipeptidyl peptidase IV is the patent that holds the saxagliptin molecule, approved by the FDA for type II diabetes United States Patent

Additional Experience

Expert Witness Experience
Expert is open to trial experience. He has been a paid consultant as an expert consultant. Expert was going to be named as expert witness but cases settled before going to court.
4 ANDA cases as expert consultant where obviousness was central to 3 of 4 cases. One ANDA case was based on improved enablement that improved purity profile of drug.
One case where claims validation/enablement were central.
6 cases writing reports/monthly meetings/ 2 depositions
Other Relevant Experience
He assisted attorneys with expert consultation in six patent cases over eight years involving ANDA Hatch Waxman, obviousness, claims violations (and claim validation) and enablement. He has given two depositions. All clients get absolute confidentiality. Expert reads entire patents to gain first rate knowledge of the case.

Fields of Expertise

pharmaceutical patent, applied organic chemistry, biotechnology, biomedical research and development, active pharmaceutical ingredient, pharmaceutical research, pharmaceutical research and development, biopharmaceutical, airborne volatile organic chemical analysis, alkali-metal chemistry, alkane chemistry, aluminum hydride chemistry, synthetic organic chemistry, antibiotic synthesis, antigen synthesis, monoclonal antibody, catalytic antibody, biotechnology management, bioanalytical chemistry, bioassay, acid dissociation constant, molecular dissociation, affinity chromatography, Paid consulting, expert report, expert testimony, expert witness, agricultural chemistry, patent cases, claim (patent), patent claim construction, patent claim construction brief, defensive patenting, abbreviated new drug application, adverse drug effect, analgesic drug, antirheumatic agent, rheumatic disease, rheumatoid arthritis, ulcerative colitis, molecule, macromolecule, molecular modeling, new drug application, multinuclear nuclear magnetic resonance, multinuclear nuclear magnetic resonance spectroscopy, chiral high-performance liquid chromatography, thermospray HPLC/mass spectroscopy, capillary gas chromatography, capillary gas chromatography application, trial consulting, diabetes insipidus, diabetes mellitus, type 2 diabetes, type I diabetes, gestational diabetes, agonistic drug, oncology, molecular oncology, acute lymphoblastic leukemia, cytotoxic drug, cytotoxic T lymphocyte, cytotoxicity, Ames test, Ames testing, genomics, phenotype, carbohydrate, carbohydrate chemistry, carbohydrate analysis, carbohydrate antigen, aminoglycoside antibiotic, antibiotic, antibiotic resistance, beta-lactam antibiotic, macrolide antibiotic, Hatch Waxman Act, activated carbon, carbon 13, proton magnetic resonance, patent infringement, patent interpretation

Request Expert

Dev Tool:

Request: expert/medicinal-chemistry-synthetic-organic-chemistry-research-and-patent-litigation
Matched Rewrite Rule: expert/([^/]+)(?:/([0-9]+))?/?$
Matched Rewrite Query: experts=medicinal-chemistry-synthetic-organic-chemistry-research-and-patent-litigation&page=
Loaded Template: single-experts.php