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코르티손-21-아세트산

코르티손-21-아세트산
코르티손-21-아세트산 구조식 이미지
카스 번호:
50-04-4
한글명:
코르티손-21-아세트산
동의어(한글):
코르티손아세테이트;코르티손-21-아세트산;코르티손
상품명:
Cortisone acetate
동의어(영문):
artriona;cortelan;cortisyl;ricortex;NSC 49420;cortistab;biocortacetate;cortoneacetate;irisoneacetate;cortogenacetate
CBNumber:
CB9277612
분자식:
C23H30O6
포뮬러 무게:
402.48
MOL 파일:
50-04-4.mol

코르티손-21-아세트산 속성

녹는점
237-240 °C(lit.)
알파
D25 +164° (c = 0.5 in acetone); D25 +208 to +217° (dioxane)
굴절률
212 ° (C=1, MeOH)
저장 조건
2-8°C
용해도
Practically insoluble in water, freely soluble in methylene chloride, soluble in dioxan, sparingly soluble in acetone, slightly soluble in ethanol (96 per cent) and in methanol.
물리적 상태
neat
수용성
19mg/L(25 ºC)
Merck
14,2539
BRN
2067543
안정성
Stable. Incompatible with strong oxidizing agents.
CAS 데이터베이스
50-04-4(CAS DataBase Reference)
EPA
Cortisone acetate (50-04-4)

안전

안전지침서 22-36/37-24/25
WGK 독일 3
RTECS 번호 GM9140000
HS 번호 32041200

코르티손-21-아세트산 C화학적 특성, 용도, 생산

화학적 성질

solid

Originator

Cortone Acetate,MSD,US,1950

용도

Cortisone Acetate is a glucocorticoid. Cortisone Acetate is an antiinflammatory agent. Cortisone Acetate is bioavailable and readily converted to the therapeutically active form, Hydrocotisone (H71461 5).

Manufacturing Process

The following technique is described in US Patent 2,541,104. A solution of 2.0 g of 3(α)-hydroxy-21-acetoxy-11,20-diketo-pregnane, which can be prepared as described in Helv. Chim. Acta 27, 1287 (1944), is treated in a mixture of 25 cc of alcohol and 6.4 cc of acetic acid at 0°C with 6.0 g of potassium
cyanide. The solution is allowed to warm to room temperature and after 3 hours is diluted with water. The addition of a large volume of water to the alcohol-hydrogen cyanide mixture precipitates a gum which is extracted with chloroform or ethyl acetate. The extract is washed with water, and evaporated to small volume under reduced pressure. The crystalline precipitate (1.3 g) consists of 3(α),20-dihydroxy-20-cyano-21-acetoxy-11-keto-pregnane; dec. 175° to 185°C.
A solution of 0.60 g of chromic acid in 1.2 cc of water and 11 cc of acetic acid is added to a solution containing about 1.2 g of 3(α),20-dihydroxy-20-cyano- 21-acetoxy-11-ketopregnane at room temperature. After 1 hour, water is added and the product, which precipitates, is filtered and recrystallized from ethyl acetate to produce 3,11-diketo-20-hydroxy-20-cyano-21-acetoxypregnane; dec. 214° to 217°C.
0.40 cc of phosphorus oxychloride is added to a solution containing about 950 mg of 3,11-diketo-20-hydroxy-20-cyano-21-acetoxy-pregnane dissolved in 3 cc of pyridine. After standing at room temperature for 24 hours, the solution is poured into water and dilute hydrochloric acid, extracted with benzene and concentrated to dryness. The crude product, after chromatography gives one main constituent, namely δ17-3,11-diketo-20-cyano-21-acetoxy-pregnene; MP 189° to 190°C.
A solution of 1.0 g of δ17-3,11-diketo-20-cyano-21-acetoxy-pregnene in 10 cc of benzene is treated with 1.0 g of osmium tetroxide and 0.43 g of pyridine. After standing at room temperature for 18 hours, the resulting solution is treated successively with 50 cc of alcohol, and with 50 cc of water containing 2.5 g of sodium sulfite. The mixture is stirred for 30 hours, filtered, and the filtrate acidified with 0.5 cc of acetic acid and concentrated to small volume in vacuo. The aqueous suspension is then extracted four times with chloroform, the chloroform extracts are combined, washed with water and concentrated to dryness in vacuo. Recrystallization of the residue from acetone gives 9°C. This compound is then treated with acetic anhydride and pyridine for 15 minutes at room temperature to produce 3,11,20-triketo-17(α)-hydroxy-21-acetoxypregnane or cortisone acetate.

Therapeutic Function

Glucocorticoid

일반 설명

Cortisone acetate, 21-(acetyloxy)-17-hydroxypregn-4-ene-3,11,20-trione, is the 21-acetate of naturally occurring cortisone with good systemicanti-inflammatory activity and low-to-moderate salt-retentionactivity after its in vivo conversion to hydrocortisoneacetate. This conversion is mediated by 11β-hydroxysteroiddehydrogenase. It is used for the entire spectrum of uses discussedpreviously under the heading, “Therapeutic Uses ofAdrenal Cortex Hormones”—collagen diseases, Addisondisease, severe shock, allergic conditions, chronic lymphocyticleukemia, and many other indications. Cortisone acetateis relatively ineffective topically, mainly because itmust be reduced in vivo to hydrocortisone. Its plasma halflifeis only about 30 minutes, compared with 90 minutes to3 hours for hydrocortisone.

Purification Methods

Crystallise -1cortisone-21-acetate from acetone or CHCl3. The UV has 15,800 M-1cm at 238nm in dioxane. [Sarett J Biol Chem 162 601 1946, Beilstein 8 III 4058, 5 IV 3481.]

코르티손-21-아세트산 준비 용품 및 원자재

원자재

준비 용품


코르티손-21-아세트산 공급 업체

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