Hydrochloric Acid → HCID 70604781, compound

Participants

Reaction Steps

The title compound is prepared as its hydrochloride in 90% yield, from 6-(2-phenylacetamido)-2,2-dimethyl-3-(1-[pivaloyloxymethyl]-tetrazol-5-yl)penam, using the method of Preparation V. The infrared spectrum (KBr disc) shows absorptions at 1780 cm-1 (β-lactam) and 1740 cm-1 (ester). The NMR spectrum (DMSO-d6) shows absorptions at 6.71 ppm (singlet, 2H, pivaloyloxy methylene hydrogens), 5.88 ppm (singlet, 1H, C-3 hydrogen), 5.83 ppm (doublet, 1H, C-5 hydrogen), 5.20 ppm (doublet, 1H, C-6 hydrogen), 1.80 ppm (singlet, 3H, C-2 methyl hydrogens), 1.20 ppm (singlet, 9H, t-butyl hydrogens) and 1.16 ppm (singlet, 3H, C-2 methyl hydrogens).

Provenance & Evidence