Wiktionary
streptose
n. (context carbohydrate English) The pentose ''5-deoxy-3-C-formyl-l-lyxose'' that is a constituent of streptomycin
Wikipedia
Streptose
L-steptose is a branched monosacharide similar to Apiose in structure. L-steptose has been found in amino-glycoside antibiotics.These antibiotics are known to carry unusual sacharides as part of their components. One example is steptomycin, a broad-spectrum antibiotic. streptomycin is known to have toxic effects in the kidney, as well as other unwanted side-effects.
L-Steptose has been prepared from a carbohydrate derivative. The protected monosacharide was reacted with an organo-lithum sulfur compound and then catalyticly hydrolyzed to produce L-steptose.