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The total synthesis of the unsaturated disaccharide, lepidimoide 4-deoxy-β-l-threo-hex-4-enopyranuronosyl-(1->2)-l-rhamnopyranose sodium salt, has been carried out from d-glucose and l-rhamnose (Tetrahedron Lett. 1993, 34, 2653), but the process is very long and complicated. A method for more easily producing this compound and in large quantities is necessary for further research. We have succeeded...
Lepidimoic acid, a 1,2-cis-linked disaccharide, is an interesting plant growth-promoting substance and has been synthesized from d-glucose and l-rhamnose by Kosemura et al., 1993. Fry et al., 1993, in view of the biosynthetic origin, suggested that it could be produced by the cleavage of a pectic polysaccharide such as rhamnogalacturonan. In this study lepidimoic acid was prepared from okra (Hibiscus...
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