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ALX-380-264 Revised 04-Jun-08
EM574
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SYNONYMS Motilide
Idremcinal
8,9-Didehydro-N-demethyl-9-deoxo-6-deoxy-6,9-epoxy-N-(1-methylethyl)-erythromycin
PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Antibiotics - Other Signal Transduction Pathway Modulators
Ordering Information
Product Numbers: Format: Size: Unit Price: Quantity: Add To Cart
ALX-380-264-M001   1 mg 280.00 USD Add To Cart
Product Specification
FORMULA: C39H69NO12
MW: 744.0
CAS NUMBER: 110480-13-2
SOURCE/HOST: Semisynthetic from erythromycin A.
PURITY: ≥95% (HPLC)
APPEARANCE: White to off-white powder.
SHIPPING: AMBIENT
LONG TERM STORAGE: -20°C

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Product Description
Agonist of the motilin receptor. Shows antimicrobial and gastrointestinal motor stimulating activity in vitro and in vivo. Stimulates contractions of muscle strips in a concentration-dependent manner (10-7-10-5M) and this contractile effect is unaffected by pretreatment with atropine or tetrodotoxin (Prod. No. ALX-630-002). Binds to smooth muscle homogenates wit a Kd value of 7.8 x 10-9. Has orexigenic activity with affinity for the growth-hormone secretagogue receptor (GHS-R, Ghrelin Receptor).
Product Specific Literature References
Gastrointestinal motor-stimulating activity of macrolide antibiotics and the structure-activity relationship: S. Omura, et al.; J. Antibiot. 38, 1631 (1985) Abstract
Macrolides with gastrointestinal motor stimulating activity: S. Omura, et al.; J. Med. Chem. 30, 1941 (1987) Abstract
Motilides, macrolides with gastrointestinal motor stimulating activity. I. O-substituted and tertiary N-substituted derivatives of 8,9-anhydroerythromycin A 6,9-hemiacetal: K. Tsuzuki, et al.; Chem. Pharm. Bull. 37, 2687 (1989) Abstract
EM574, an erythromycin derivative, is a potent motilin receptor agonist in human gastric antrum: M. Satoh, et al.; J. Pharmacol. Exp. Ther. 271, 574 (1994) Abstract
Bioactive metabolites of EM574 and EM523, erythromycin derivatives having strong gastrointestinal motor stimulating activity: Y. Funabashi, et al.; J. Antibiot. 49, 794 (1996) Abstract
Vagus-dependent and vagus-independent mechanisms of action of the erythromycin derivative EM574 and motilin in dogs: N. Inatomi, et al.; Jpn. J. Pharmacol. 71, 29 (1996) Abstract
EM574, an erythromycin derivative, is a motilin receptor agonist in the rabbit: F. Sato, et al.; Eur. J. Pharmacol. 322, 63 (1997) Abstract
Effects of EM574 and cisapride on gastric contractile and emptying activity in normal and drug-induced gastroparesis in dogs: T. Tanaka, et al.; J. Pharmacol. Exp. Ther. 287, 712 (1998) Abstract
EM574, an erythromycin derivative, improves delayed gastric emptying of semi-solid meals in conscious dogs: F. Sato, et al.; Eur. J. Pharmacol. 395, 165 (2000) Abstract
General Information
MANUFACTURER Manufactured by the Kitasato Institute, Tokyo.
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