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Glucoheptonic acid

Chemical Name Erythromycin glucoheptonic acid salt Common Name —... [Pg.572]

A solution of 10 grams of d-glucoheptonic acid lactone in 50 ml of distilled water is warmed on a steam bath for about 2 hours to hydrolyze the lactone to the acid. The mixture is cooled and 100 ml of 95% ethanol are added. To the solution of glucoheptonic acid are added about 37 grams of erythromycin and the volume of the reaction mixture is brought to 200 ml by the addition of 95% ethanol. The reaction mixture is stirred for about 2 hours and is filtered through a porcelain filter candle of porosity 02. To provide a steriie product, aseptic technique is used throughout the remainder of the procedure. [Pg.572]

As early as 1917, it was known that C2 and C3 in this trimethyl sugar each carried a methoxyl group, since (a) it failed to yield an osazone, and (b) the trimethyl-D-glucoheptonic acid derived from it by a cyanohydrin synthesis gave a lactone only with the concomitant loss of one of the methyl radicals.135 The production of a dimethyl- and not a trimethyl-... [Pg.191]

Preparation 64.—a-d-Glucoheptonic Acid [Hepan-2 3 4 5 6 7-hexol-acid],... [Pg.128]

Gluconic acid is commonly obtained by fermentation while glucoheptonic acid is synthesized from the cyanohydrin of glucose (see Figure 9.2.13). [Pg.254]

Figure 9.2.13 Gluconic and glucoheptonic acids from D-glucose. Figure 9.2.13 Gluconic and glucoheptonic acids from D-glucose.
Calcium D-glucarate (1 1) tetrahydrate. See Calcium saccharate Calcium gluceptate CAS 17140-60-2 29039-00-7 (dihydrate) EINECS/ELINCS 241-203-6 Synonyms Calcium glucoheptonate (1 2) Calcium a-D-heptagluconate Glucoheptonic acid, calcium salt (2 1) a-D-Glucoheptonic acid, calcium salt... [Pg.681]

See other pages where Glucoheptonic acid is mentioned: [Pg.444]    [Pg.394]    [Pg.394]    [Pg.572]    [Pg.2390]    [Pg.51]    [Pg.51]    [Pg.444]    [Pg.128]    [Pg.191]    [Pg.254]    [Pg.285]    [Pg.1467]    [Pg.1467]    [Pg.330]    [Pg.2390]    [Pg.23]    [Pg.578]    [Pg.698]    [Pg.698]    [Pg.623]    [Pg.572]    [Pg.23]    [Pg.572]    [Pg.254]    [Pg.254]    [Pg.1885]    [Pg.4027]    [Pg.601]    [Pg.601]    [Pg.1053]   
See also in sourсe #XX -- [ Pg.254 , Pg.255 ]



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Glucoheptonates

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