Potassium Bromide → 6-(2-[2-Aminoacetamido]-2-[p-hydroxyphenyl]acetamido)-2,2-dimethyl-3-(5-tetrazolyl)penam

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Reaction Steps

The title compound is prepared in 45% yield from 6-(2-amino-2-[p-hydroxyphenyl]acetamido)-2,2-dimethyl-3-(5-tetrazolyl)penam and sodium N-(2-ethoxycarbonyl-1-methylvinyl)-2aminoacetate, using the procedure of Example XC. The product has m.p. 173°-188° C. (dec.). IR (KBr disc): 1785 cm-1 (β-lactam). NMR (DMSO-d6): 7.55-710 ppm (m, 2H), 7.00-6.00 ppm (m, 2H), 5.75-5.40 ppm (m, 3H), 5.10 ppm (s, 1H), 3.65 ppm (m, 2H), 1.55 ppm (s, 3H), 0.95 ppm (s, 3H).

Provenance & Evidence