Hydrochloric Acid → HCID 76184745, compound

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A mixture of 1-(4-nitrobenzyloxycarbonyl)-1-(2-oxo-4-triethylammonioazetidin-1-yl)but-1-en-2-olate (210 mg) in water (10 ml) and 0.1 N hydrochloric acid (5 ml) was lyophilised and the residue triturated with ether to afford the title salt (220 mg), νmax (Nujol) 1790 cm-1 (β-lactam), τ (DMSO-d6) values for mixture of isomers include 4.50 (m, azetidinyl C--4H), 6.3-6.8 (m, NCH2), 6.7-7.3 (m, ##STR7##

Provenance & Evidence