Ethyl 2-aminoacetate, chloride → HCID 178461609, compound

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Reaction Steps

Glycine hydrochloride ethyl ester (0.76 g) and sodium acetate (0.9 g) were added to a stirred solution of the product from Example 1.3 (0.51 g) in methanol (10 ml). The mixture was stirred at room temperature for 16 h and then concentrated to dryness. Chromatography of the residue gave the (1S)-N-tert-butoxycarbonyl-5-O-tert-butyldimethylsilyl-1-C-(1-cyano-2-(ethoxycarbonylmethylamino)ethenyl]-1,4-dideoxy-1,4-imino-2,3-O-isopropylidene-D-ribitol (4) (0.48) g as a diastereomeric mixture.

Provenance & Evidence