L. B. Crast

Derivatives of 6-Aminopenicillanic Acid. I. Partially Synthetic Penicillins Prepared from α-Aryloxyalkanoic Acids

Yvon G. Perron, W. Minor, C. T. Holdrege et al. · Journal of the American Chemical Society · 1960 · 64 citations

Pharmaceutical Science, Bioorganic Chemistry, Altmetric Attention Score +18

Derivatives of 6-Aminopenicillanic Acid. V. Synthesis of 6-Aminopenicillanyl Alcohol and Certain Derivatives¹

Yvon G. Perron, L. B. Crast, J. M. Essery et al. · Journal of Medicinal Chemistry · 1964 · 33 citations

Medicinal Chemistry, Derivative (Chemistry), Derivatives +14

Synthesis and .beta.-lactamase inhibitory properties of 2.beta.-(chloromethyl)-2.alpha.-methylpenam-3.alpha.-carboxylic acid 1,1-dioxide

William J. Gottstein, L. B. Crast, Robert Graham et al. · Journal of Medicinal Chemistry · 1981 · 24 citations

Medicinal Chemistry, Various Bacterial Beta-lactamases, Bioorganic Chemistry +12

Synthesis and in vitro activity of new semisynthetic coumermycin analogs: Chemical modification at the C-3 amide.

Yasutsugu Ueda, Julia M. Chuang, L. B. Crast et al. · The Journal of Antibiotics · 1989 · 17 citations · Full text

Derivatives of 6-Aminopenicillanic Acid. II. Reactions with Isocyanates, Isothiocyanates, and Cyclic Anhydrides

Yvon G. Perron, W. Minor, L. B. Crast et al. · The Journal of Organic Chemistry · 1961 · 16 citations

Derivative (Chemistry), Derivatives, Bioorganic Chemistry +13