C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/362.4, 260/3
C07D 307/62 (2006.01) C07H 7/06 (2006.01)
Patent
CA 1296345
Abstract of the Disclosure 6-O-(2-keto-L-gulonoyl)-L-ascorbate substantially free from 2-keto-L-gulonic acid is produced by allowing an acid to act on 2-keto-L-gulonic acid in an inert organic solvent and recovering 6-O-(2-keto-L-gulonoyl)-L-ascorbate from the reaction mixture. 6-O-(2-keto-L-gulonoyl)-L-ascorbate is more fat- soluble than L-ascorbic acid and is expected of the use as a prodrug for L-ascorbic acid that can be absorbed from the intestinal tract.
569304
Takanohashi Kunio
Tanaka Mitsutaka
Yamano Toru
Fetherstonhaugh & Co.
Takeda Chemical Industries Ltd.
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