Nicholas D. Tyrrell

A Proposal That Would Ban Manufacture, Supply, and Use of All Fluoropolymers and Most Fluorinated Reagents within the Entire EU

Nicholas D. Tyrrell · Organic Process Research & Development · 2023 · 97 citations

Pharmacy, Pharmaceutical Policy, Labeling Regulation +9

Reduction of 6α-alkyl-6β-isocyanopenicillanates by tri-n-butyltin hydride. A stereoselective synthesis of 6β-alkylpenicillanates

D. I. JOHN, Eric J. Thomas, Nicholas D. Tyrrell · Journal of the Chemical Society Chemical Communications · 1979 · 31 citations

Natural Sciences, Chemistry, Medicinal Chemistry +4

Stereoselective preparation of 6β -substituted penicillanates

D. I. JOHN, Nicholas D. Tyrrell, Eric J. Thomas · Tetrahedron · 1983 · 24 citations

Pharmacy, Chemistry, Medicinal Chemistry +9

A Scaleable Route to the Pure Enantiomers of Verapamil

Robin M. Bannister, Michael H. Brookes, Graham Evans et al. · Organic Process Research & Development · 2000 · 23 citations

Pharmacy, Biochemistry, Chemistry +10

Triorganotin hydride reduction of 6β-isothiocyanatopenicillanates: a radical-induced sulphur–C(2) bond cleavage

D. I. JOHN, Nicholas D. Tyrrell, Eric J. Thomas · Journal of the Chemical Society Chemical Communications · 1981 · 17 citations

Natural Sciences, Biochemistry, Chemistry +10