A new procedure for the transformation of hydrotiocianata 7- (2-tienilacetamico) 3- (1-piridylmetil) -3-cefem-4-carboxilico betaina, in 7- (2-tienilacetamido) 3- (1-piridilmetil). (Machine-translation by Google Translate, not legally binding)

摘要

A new process for the transformation of 7- (2-thienylacetamido) 3 - (- 1-pyridylmethyl) -3-cephene-4-carboxylic acid hydrothiocyanate, betaine in 7- (2-thienylacetamido) 3 - (- 1-pyridylmethyl) - 3-cefºn-4-carboxylic betaine, through a water-methanol-isopropanol bridge process, whose successive phases for the precipitation of the product have the essential advantage of overcoming the inconvenience of the immiscibility presented by the direct use of isopropanol. From concentrated aqueous solutions. (Machine-translation by Google Translate, not legally binding)