Ethanol → HCID 131713475, compound

Participants

Reaction Steps

1 ml of ethanol was added to a solution of 0.162 g of the product of Example 36 in 0.3 ml of a molar solution of sodium bicarbonate in water and the mixture was vacuum filtered. The filtrate was evaporated to dryness undere reduced pressure and the residue was taken up in ethanol. After efflorescence, the mixture was vaccum filtered to obtain 0.09 g of the syn isomer of sodium 3-[(1-methyl-1H-tetrazol-5-yl)-thiomethyl]-7-[2-(2-amino-4-thiazolyl)-2-(2-azidoethoxyimino)-acetamido]-ceph-3-eme-4-carboxylate.

Provenance & Evidence