Home > All categories> Biochemicals and Pharmaceutical Chemicals> Pharmaceutical Impurities> [(1S,3R,7S,8S,8aR)-8-[2-[(2R,4R)-4-acetyloxy-6-oxooxan-2-yl]ethyl]-3,7-dimethyl-1,2,3,7,8,8a-hexahydronaphthalen-1-yl] 2,2-dimethylbutanoate

[(1S,3R,7S,8S,8aR)-8-[2-[(2R,4R)-4-acetyloxy-6-oxooxan-2-yl]ethyl]-3,7-dimethyl-1,2,3,7,8,8a-hexahydronaphthalen-1-yl] 2,2-dimethylbutanoate

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Origin: China

Cas No: 145576-25-6

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 50 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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Product Description

Property

CAS No.: 145576-25-6 Formula: C27H40O6 Molecular Weight: 460.60300

Description

Simvastatin impurity.

Basic Info

Chemical Name	[(1S,3R,7S,8S,8aR)-8-[2-[(2R,4R)-4-acetyloxy-6-oxooxan-2-yl]ethyl]-3,7-dimethyl-1,2,3,7,8,8a-hexahydronaphthalen-1-yl] 2,2-dimethylbutanoate
Synonyms	4'-Acetyl Simvastatin; Acetyl simvastatin;
CAS No.	145576-25-6
Molecular Formula	C27H40O6
Molecular Weight	460.60300
PSA	78.90000
LogP	5.15640

Properties

Density	1.11g/cm3
Boiling Point	575.2ºC at 760 mmHg
Flash Point	243.2ºC
Refractive Index	1.519
Vapor Pressure	3.1E-13mmHg at 25°C

Safety Info

Safety Statements	S26; S36
Risk Statements	R36/37/38
Hazard Codes	Xi

Synthesis Route

+(2R,4R)-2-(2-((1S,2S,6R,8S,8aR)-8-acetoxy-2,6-dimethyl-1,2,6,7,8,8a-hexahydronaphthalen-1-yl)ethyl)-6-oxotetrahydro-2H-pyran-4-yl acetate→[(1S,3R,7S,8S,8aR)-3,7-dimethyl-8-[2-[(2R)-6-oxo-2,3-dihydropyran-2-yl]ethyl]-1,2,3,7,8,8a-hexahydronaphthalen-1-yl] 2,2-dimethylbutanoate+[(1S,3R,7S,8S,8aR)-8-[2-[(2R,4R)-4-acetyloxy-6-oxooxan-2-yl]ethyl]-3,7-dimethyl-1,2,3,7,8,8a-hexahydronaphthalen-1-yl] 2,2-dimethylbutanoate
+2,2-Dimethylbutyryl chloride→[(1S,3R,7S,8S,8aR)-3,7-dimethyl-8-[2-[(2R)-6-oxo-2,3-dihydropyran-2-yl]ethyl]-1,2,3,7,8,8a-hexahydronaphthalen-1-yl] 2,2-dimethylbutanoate+[(1S,3R,7S,8S,8aR)-8-[2-[(2R,4R)-4-acetyloxy-6-oxooxan-2-yl]ethyl]-3,7-dimethyl-1,2,3,7,8,8a-hexahydronaphthalen-1-yl] 2,2-dimethylbutanoate
+2,2-Dimethylbutanoic anhydride→[(1S,3R,7S,8S,8aR)-3,7-dimethyl-8-[2-[(2R)-6-oxo-2,3-dihydropyran-2-yl]ethyl]-1,2,3,7,8,8a-hexahydronaphthalen-1-yl] 2,2-dimethylbutanoate+(2R,4R)-2-(2-((1S,2S,6R,8S,8aR)-8-acetoxy-2,6-dimethyl-1,2,6,7,8,8a-hexahydronaphthalen-1-yl)ethyl)-6-oxotetrahydro-2H-pyran-4-yl acetate

Precursor

(4R,6R)-4-hydroxy-6-(2-((1S,2S,6R,8S,8aR)-8-hydroxy-2,6-dimethyl-1,2,6,7,8,8a-hexahydronaphthalen-1-yl)ethyl)tetrahydro-2H-pyran-2-one
(2R,4R)-2-(2-((1S,2S,6R,8S,8aR)-8-acetoxy-2,6-dimethyl-1,2,6,7,8,8a-hexahydronaphthalen-1-yl)ethyl)-6-oxotetrahydro-2H-pyran-4-yl acetate
2,2-Dimethylbutanoic anhydride

Downstream Product

[(1S,3R,7S,8S,8aR)-3,7-dimethyl-8-[2-[(2R)-6-oxo-2,3-dihydropyran-2-yl]ethyl]-1,2,3,7,8,8a-hexahydronaphthalen-1-yl] 2,2-dimethylbutanoate
simvastatin
(3R,5R)-7-{(1S,2S,6R,8S,8aR)-8-[(2,2-Dimethylbutanoyl)oxy]-2,6-di methyl-1,2,6,7,8,8a-hexahydro-1-naphthalenyl}-3,5-dihydroxyheptan oic acid

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