Aurothioglucose

Aurothioglucose

Clinical data
Synonyms	Gold thioglucose, Solganal, Auromyose
AHFS/Drugs.com	Consumer Drug Information
Routes of administration	Intramuscular injection
ATC code	M01CB04 (WHO)
Pharmacokinetic data
Bioavailability	0%
Identifiers
IUPAC name gold(I) (2S,3S,4R,5S)-3,4,5-trihydroxy- 6-(hydroxymethyl)-oxane-2-thiolate
CAS Number	12192-57-3 Y
PubChem CID	6104
ChemSpider	16738764 Y
UNII	2P2V9Q0E78
ChEMBL	ChEMBL1697725 N
E number	{{#property:P628}}
ECHA InfoCard	{{#property:P2566}}
Chemical and physical data
Formula	C6H11AuO5S
Molar mass	392.181 g/mol
3D model (JSmol)	Interactive image
SMILES O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1S[Au]
InChI InChI=1S/C6H12O5S.Au/c7-1-2-3(8)4(9)5(10)6(12)11-2;/h2-10,12H,1H2;/q;+1/p-1/t2-,3-,4+,5-,6-;/m1./s1 Y Key:XHVAWZZCDCWGBK-WYRLRVFGSA-M Y
NY (what is this?)  (verify)

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Aurothioglucose, also known as gold thioglucose, is a chemical compound with the formula AuSC₆H₁₁O₅. This derivative of the sugar glucose was formerly used to treat rheumatoid arthritis.

History

Main article: Gold salts

Throughout history, gold was used to cure diseases, although the efficacy was not established. In 1935, gold drugs were reported to be effective for the treatment of rheumatoid arthritis. Although many patients reacted positively to the drug, gold thioglucose was not uniformly effective.

Three gold drugs remain in active clinical use for this purpose in the United States: auranofin, sodium aurothiomalate (gold sodium thiomalate) and aurothioglucose. In the United Kingdom, only sodium aurothiomalate and auranofin are used.

In 2001, aurothoglucose was withdrawn from the Dutch marked, where it had been the only injectable gold preparation available since 1943, forcing hospitals to change medication for a large number of patients to aurothiomalate. The drug had been in use for more than 70 years, and four years later the reasons for its sudden disappearance remained unclear.

Medicinal chemistry

Main article: gold

Gold thioglucose features gold in the oxidation state of +I, like other gold thiolates. It is a water-soluble, non-ionic species that is assumed to exist as a polymer. Under physiological conditions, an oxidation-reduction reaction leads to the formation of metallic gold and sulfinic acid derivative of thioglucose.

2 AuSTg → 2 Au + TgSSTg

TgSSTg + H₂O → TgSOH + TgSH

2 TgSOH → TgSO₂H + TgSH

Overall: 2 H₂O + 4 AuSTg → 4 Au + TgSO₂H + 3 TgSH

(where AuSTg = gold thioglucose, TgSSTg = thioglucose disulfide, TgSO₂H = sulfinic acid derivative of thioglucose)

Preparation

Gold thioglucose can be prepared by treating gold bromide with thioglucose solution saturated with sulfur dioxide. Gold thioglucose is precipitated with methanol and recrystallized with water and methanol.

Miscellaneous observations

In recent research, it was found that injection of gold thioglucose in the mouse induces obesity. Aurothioglucose has an interaction with the antimalarial medication hydroxychloroquine.

See also

• Auranofin