Home > Organosilicon Compounds> methyl (5R)-5-[(1R,3aS,4E,7aR)-4-[(2Z)-2-[(5S)-5-[tert-butyl(dimethyl)silyl]oxy-2-methylidenecyclohexylidene]ethylidene]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-1-yl]hexanoate

methyl (5R)-5-[(1R,3aS,4E,7aR)-4-[(2Z)-2-[(5S)-5-[tert-butyl(dimethyl)silyl]oxy-2-methylidenecyclohexylidene]ethylidene]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-1-yl]hexanoate

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Origin: China

Cas No: 135359-42-1

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 100 mt/month

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

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CAS No.: 135359-42-1 Formula: C32H54O3Si Molecular Weight: 514.85500

Description

Secalciferol intermediate.

Basic Info

Chemical Name	methyl (5R)-5-[(1R,3aS,4E,7aR)-4-[(2Z)-2-[(5S)-5-[tert-butyl(dimethyl)silyl]oxy-2-methylidenecyclohexylidene]ethylidene]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-1-yl]hexanoate
Synonyms
CAS No.	135359-42-1
Molecular Formula	C32H54O3Si
Molecular Weight	514.85500
PSA	35.53000
LogP	9.16550

Synthesis Route

tert-butyl-[3-(2-diphenylphosphorylethylidene)-4-methylidenecyclohexyl]oxy-dimethylsilane+[1R-[1α(R*),3aβ,7aα]]-Octahydro-δ,7a-dimethyl-4-oxo-1H-indene-1-pentanoic Acid Methyl Ester→methyl (5R)-5-[(1R,3aS,4E,7aR)-4-[(2Z)-2-[(5S)-5-[tert-butyl(dimethyl)silyl]oxy-2-methylidenecyclohexylidene]ethylidene]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-1-yl]hexanoate
acrylic acid methyl ester+tert-Butyl-{(S)-3-[2-[(1R,3aS,7aR)-1-((S)-2-iodo-1-methyl-ethyl)-7a-methyl-octahydro-inden-(4E)-ylidene]-eth-(Z)-ylidene]-4-methylene-cyclohexyloxy}-dimethyl-silane→methyl (5R)-5-[(1R,3aS,4E,7aR)-4-[(2Z)-2-[(5S)-5-[tert-butyl(dimethyl)silyl]oxy-2-methylidenecyclohexylidene]ethylidene]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-1-yl]hexanoate
tert-butyl-[3-(2-diphenylphosphorylethylidene)-4-methylidenecyclohexyl]oxy-dimethylsilane→methyl (5R)-5-[(1R,3aS,4E,7aR)-4-[(2Z)-2-[(5S)-5-[tert-butyl(dimethyl)silyl]oxy-2-methylidenecyclohexylidene]ethylidene]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-1-yl]hexanoate

Precursor

tert-butyl-[3-(2-diphenylphosphorylethylidene)-4-methylidenecyclohexyl]oxy-dimethylsilane
(1R,1’S)-Octahydro-1-(2’-iodo-1’-methylethyl)-7a-methyl-inden-4-one
[1R-[1α(R*),3aβ,7aα]]-Octahydro-δ,7a-dimethyl-4-oxo-1H-indene-1-pentanoic Acid Methyl Ester
acrylic acid methyl ester

Downstream Product

(1S,3Z)-3-[(2E)-2-[(1R,3aS,7aR)-7a-methyl-1-[(2R)-7,7,7-trideuterio-6-hydroxy-6-(trideuteriomethyl)heptan-2-yl]-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexan-1-ol
calcidiol

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