Water → HCID 87421969, compound

Participants

Reaction Steps

0.5 g of (6R, 7R)-7-amino-3[E-(R)-1′-(5-methyl-2-oxo-[1,3]-dioxol-4-ylmethoxycarbonyl)-2-oxo-[1,3′]bipyrrolidinyl-3-ylidenemethyl]-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid were dissolved in 20 ml of dichloromethane at 0°. 0.7ml of bis(trimethylsilyl)acetamide were then added and 0.46 g of 2-trityloxyimino-2-(5-amino-1,2,4-thiadiazol-3-yl)-acetic acid chloride hydrochloride (J. Antibiotics 37:557-571, 1984) were metered in portions. The mixture was poured onto 15 ml of water/15 ml of MeOH and the phases were separated. The water phase was washed once again with 15 ml of dichloromethane and the combined organic phases were dried over sodium sulfate and concentrated in vacuo.

Provenance & Evidence