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7α-Chlor-11β,17,21-trihydroxy-16α-methylpregna-1,4-dien-3,20-dion-17,21-di(propionat)

Alclometasone Dipropionate Struktur
66734-13-2
CAS-Nr.
66734-13-2
Bezeichnung:
7α-Chlor-11β,17,21-trihydroxy-16α-methylpregna-1,4-dien-3,20-dion-17,21-di(propionat)
Englisch Name:
Alclometasone Dipropionate
Synonyma:
Aclovate;Vitra;Almeta;Delonal;Ddlonal;sch22219;Aclosone;alclovate;Modrasone;AlcloMetasone-17
CBNumber:
CB2501394
Summenformel:
C28H37ClO7
Molgewicht:
521.04
MOL-Datei:
66734-13-2.mol

7α-Chlor-11β,17,21-trihydroxy-16α-methylpregna-1,4-dien-3,20-dion-17,21-di(propionat) Eigenschaften

Schmelzpunkt:
212-216°
alpha 
D26 +42.6° (c = 0.3 in DMF)
Siedepunkt:
613.3°C (rough estimate)
Dichte
1.0766 (rough estimate)
Brechungsindex
1.4429 (estimate)
storage temp. 
Hygroscopic, -20°C Freezer, Under inert atmosphere
L?slichkeit
Chloroform (Slightly), DMF (Slightly), Methanol (Slightly)
pka
13.70±0.70(Predicted)
Aggregatzustand
Solid
Farbe
White to Off-White
Stabilit?t:
Hygroscopic
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
HS Code  2937220000
Bildanzeige (GHS) GHS hazard pictograms
Alarmwort Achtung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H360 Kann die Fruchtbarkeit beeintr?chtigen oder das Kind im Mutterleib sch?digen. Fertility (Fruchtbarkeit) Kategorie 1 Achtung GHS hazard pictogramssrc="/GHS08.jpg" width="20" height="20" />
H373 Kann die Organe sch?digen bei l?ngerer oder wiederholter Exposition. Spezifische Zielorgan-Toxizit?t (wiederholte Exposition) Kategorie 2 Warnung P260, P314, P501
Sicherheit
P260 Dampf/Aerosol/Nebel nicht einatmen.
P314 Bei Unwohlsein ?rztlichen Rat einholen / ?rztliche Hilfe hinzuziehen.
P501 Inhalt/Beh?lter ... (Entsorgungsvorschriften vom Hersteller anzugeben) zuführen.

7α-Chlor-11β,17,21-trihydroxy-16α-methylpregna-1,4-dien-3,20-dion-17,21-di(propionat) Chemische Eigenschaften,Einsatz,Produktion Methoden

Beschreibung

Alclometasone dipropionate (ACM) is a synthetic nonfluorinated corticosteroid which has been marketed since 1986 for the topical treatment of inflammatory and pruritic corticosteroid-responsive dermatoses. As esterification of the hydroxyl group at positions 17 and 21 of the alclometasone molecule enhances topical anti-inflammatory activity, the dipropionate salt of alclometasone is much more potent than alclometasone itself. It reduces cutaneous anaphylaxis reactions induced by tuberculin or albumin in mice when administered topically (20 μl of a 0.1% solution). ACM also inhibits androgen-dependent cytochrome P450 activity and the O-depropylation activity of 7-alkoxy-coumarin O-dealkylase in a dose-dependent manner in male rats but has no effect on hepatic drug metabolism in female rats or mice of both sexes. Formulations containing ACM have been used to treat radiation, allergic contact dermatitis and psoriasis.

Chemische Eigenschaften

Alclometasone dipropionate is a white powder, insoluble in water, slightly soluble in propylene glycol and moderately soluble in hexylene glycol. Crystallization from acetone-methanol-isopropyl ether.

Charakteristisch

The alclometasone dipropionate [7α-chloro-11β,17,21- trihydroxy-16α-methylpregna-1,4-dien-3,20-dione 17,21- dipropionate) molecule is obtained by insertion of a chlorine atom in position 7α of 16α-me thylprensoline 17,21-dipropionate. The unique properties of the compound result from the presence of a chlorine atom in position 7α instead of positions C6 or C9, which increases the potency of its effect without increasing the incidence of local and systemic adverse effects. Additionally, as a highly lipophilic compound, alclometasone dipropionate rapidly penetrates into the skin where its active metabolites bind to specific receptors.

Verwenden

Alclometasone dipropionate is a corticosteroid used topically for its glucocorticoid activity in the treatment of various skin disorders. It is usually used as a cream or ointment containing 0.05%. It is topically used in dermatology as an anti-inflammatory, antipruritic, antiallergic, antiproliferative and vasoconstrictive agent. Alclometasone dipropionate has been used since 1986 for the treatment of corticosteroid-responsive dermatoses. It is ranked in Group 6 based on potency and has been dassified as group D. According to the A-D grouping, patch-test reactions occur six to seven times more frequently within well-defined groups of structurally related chemicals than between corticosteroids of different groups.

Definition

ChEBI: Alclometasone dipropionate is a prednisolone compound having an alpha-chloro substituent at the 7-position, an alpha-methyl substituent at the 16-position and O-propanoyl groups at the 17- and 21-positions. It has a role as an anti-inflammatory drug. It is a 20-oxo steroid, an 11beta-hydroxy steroid, a glucocorticoid, a steroid ester, a propanoate ester, a 3-oxo-Delta(1),Delta(4)-steroid and a chlorinated steroid. It is functionally related to a prednisolone.

synthetische

Alclometasone dipropionate synthesis: The dehydrogenation of 16alpha-methyl-11beta,17alpha,21-trihydroxypregna-1,4-diene-3,20-dione-21-acetate (I) with dichlorodicyanobenzoquinone (II) in dioxane HCl gives 16alpha-methyl-11beta,17alpha,21-trihydroxypregna-1,4,6-triene-3,20-dione-21-acetate (III), which is hydrolyzed with aqueous NaHCO3 to the corresponding free triol (IV). The reaction of (IV) with triethyl orthopropionate (A) by means of p-toluenesulfonic acid in DMSO yields 16alpha-methyl-11beta,17alpha,21-trihydroxypregna-1,4,6-triene-3,20-dione-17,21-ethylorthopropionate (V), which is hydrolyzed partially with acetic acid to 16alpha-methyl-11beta,17alpha,21-trihydroxypregna-1,4,6-triene-3,20-dione-17-propionate (VI). The acylation of (VI) with propionic anhydride affords 16alpha-methyl-11beta,17alpha,21-trihydroxypregna-1,4,6-triene-3,20-dione-17,21-dipropionate (VII), which is finally treated with dry HCl in dioxane.
synthesis of Alclometasone dipropionate

Trademarks

Aclovate (GlaxoSmithKline), Aclosone, Legederm, Almeta, Vaderm, Modrasone, Delonal.

Nebenwirkungen

The following local adverse reactions have been reported with alclometasone dipropionate cream in approximately 2% of patients: itching and burning, erythema, dryness, irritation, and papular rashes.
The following local adverse reactions have been reported with alclometasone dipropionate ointment in approximately 1% of patients: itching, burning, and erythema. The following additional local adverse reactions have been reported infrequently with topical corticosteroids, but may occur more frequently with the use of occlusive dressings. These reactions are listed in approximate decreasing order of occurrence: folliculitis, acneiform eruptions, hypopigmentation, perioral dermatitis, allergic contact dermatitis, secondary infection, skin atrophy, striae, and miliaria.

Sicherheitsprofil

Alclometasone dipropionate has been classified as the FDA category C of drug safety during pregnancy (irrespective of the trimester of pregnancy), which means that it should be used during pregnancy only if the potential benefit to the mother justifies the potential risk to the foetus. The safety of alclometasone use in paediatric patients below 1 year of age has not been established and there are no adequate, randomised studies in large patient groups.

Mode of action

At the cellular level, alclometasone dipropionate, like other glucocorticoids, after crossing the cell membrane binds to specific glucocorticoid receptors (GCR) in the cytoplasm. Subsequently, the glucocorticoid-GCR complex moves into the nucleus, where its binds to DNA at specific regions, known as the glucocorticoid response elements (GRE). At further stages, the expression of certain genes is either stimulated (transactivation) or inhibited (transuppression). In clinical practice, glucocorticoids are used for their anti-inflammatory, immunosuppressant and antiproliferative effects.

7α-Chlor-11β,17,21-trihydroxy-16α-methylpregna-1,4-dien-3,20-dion-17,21-di(propionat) Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


7α-Chlor-11β,17,21-trihydroxy-16α-methylpregna-1,4-dien-3,20-dion-17,21-di(propionat) Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 79)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Hubei Jusheng Technology Co.,Ltd.
18871490254
linda@hubeijusheng.com CHINA 28172 58
Xiamen AmoyChem Co., Ltd
+86-86-5926051114 +8618959220845
sales@amoychem.com China 6383 58
CONIER CHEM AND PHARMA LIMITED
+8618523575427
sales@conier.com China 49374 58
career henan chemical co
+86-0371-86658258 +8613203830695
factory@coreychem.com China 29811 58
Hebei Mojin Biotechnology Co., Ltd
+86 13288715578 +8613288715578
sales@hbmojin.com China 12840 58
TargetMol Chemicals Inc.
+1-781-999-5354 +1-00000000000
marketing@targetmol.com United States 32080 58
AFINE CHEMICALS LIMITED
+86-0571-85134551
sales@afinechem.com China 15354 58
Dayang Chem (Hangzhou) Co.,Ltd.
571-88938639 +8617705817739
info@dycnchem.com China 52849 58
GIHI CHEMICALS CO.,LIMITED
+8618058761490
info@gihichemicals.com China 49979 58
Wuhan Quanjinci New Material Co.,Ltd.
+86-15271838296; +8615271838296
kyra@quanjinci.com China 1512 58

66734-13-2(7α-Chlor-11β,17,21-trihydroxy-16α-methylpregna-1,4-dien-3,20-dion-17,21-di(propionat))Verwandte Suche:


  • ALCLOMETASONE DIPROPIONATE (300 MG)
  • 7alpha-chloro-11beta,17,21-trihydroxy-16alpha-methylpregna-1,4-diene-3,20-dione 17,21-di(propionate)
  • alclovate
  • (7-alpha,11-beta,16-alpha)-xy)
  • pregna-1,4-diene-3,20-dione,7-chloro-11-hydroxy-16-methyl-17,21-bis(1-oxopropo
  • sch22219
  • ALCLOMETHASONE-17,21-DIPROPIONATE
  • ALCLOMETASONEDIPROPIONATE,USP
  • Almeta
  • Delonal
  • Pregna-1,4-diene-3,20-dione, 7-chloro-11-hydroxy-16-methyl-17,21-bis(1-oxopropoxy)-, (7α,11β,16α)-
  • 7α-Chloro-16α-methyl-11β,17α,21-trihydroxypregna-1,4-diene-3,20-dione-17,21-dipropionate
  • Aclosone
  • Ddlonal
  • Modrasone
  • 7α-Chloro-11β-hydroxy-17,21-di(propionyloxy)-16α-methylpregna-1,4-diene-3,20-dione
  • Ppropionic acid alclometasone
  • Vitra
  • AlcloMetasone-17
  • Pregna-1,4-diene-3,20-dione,7-chloro-11-hydroxy-16-Methyl-17,21-bis(1-oxopropoxy)-, (7a,11b,16a)-
  • Alclometasone- 17,21-dipropiona
  • (7a,11b,16a)-7-chloro-11-hydroxy-16-methyl-17,21-bis(1-oxopropoxy)pregna-1,4-diene-3,20-dione
  • alclometasone-17,21-dipropionate
  • ALCLOMETASONE DIPROPIONATE
  • 7α-Chloro-11β,17,21-trihydroxy-16α-methylpregna-1,4-diene-3,20-dione 17,21-dipropionate
  • Alclometasone DipropionateQ: What is Alclometasone Dipropionate Q: What is the CAS Number of Alclometasone Dipropionate Q: What is the storage condition of Alclometasone Dipropionate Q: What are the applications of Alclometasone Dipropionate
  • Alclometasone Dipropionate (1012757)
  • Aclovate
  • Vaderm|||Sch 22219|||Aclovate|||Delonal
  • 66734-13-2
  • C28H37CI07
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