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Picture of Bis-TBDMS-trans-calcipotriol

Bis-TBDMS-trans-calcipotriol

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Origin: China

Cas No: 112849-27-1

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 80 mt/month

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

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  • Products Specification
  • Product Description
  • Property

    CAS No.: 112849-27-1 Formula: C39H68O3Si2 Molecular Weight: 641.12600

    Description

    Protected trans-Calcipotriol, a vitamin D analog.

    Basic Info

    Chemical Name Bis-TBDMS-trans-calcipotriol
    Synonyms

    Trans-Calcipotriol-bis-TBDMS-ether;

    CAS No. 112849-27-1
    Molecular Formula C39H68O3Si2
    Molecular Weight 641.12600
    PSA 38.69000
    LogP 11.14960

    Properties

    Density 0.988 g/cm3
    Boiling Point 333.713ºC
    Flash Point 333.713ºC
    Refractive Index 1.515

    Synthesis Route

    (1S,3R,3'R)-bis(tert-butyldimethylsilyloxy)-20(R)-(3'-cyclopropyl-3'-hydroxyprop-1'(E)-enyl)-9,10-secopregna-5(E),7(E),10(19)-trieneBis-TBDMS-trans-calcipotriol
    (2E,4R)-4-[(1R,3aS,4E,7aR)-4-[(2E)-2-[(3S,5R)-3,5-Bis[[(tert-butyl)dimethylsilyl]oxy]-2-methylenecyclohexylidene]ethylidene]octahydro-7a-methyl-1H-inden-1-yl]-1-cyclopropyl-2-penten-1-one(1S,3R,3'R)-bis(tert-butyldimethylsilyloxy)-20(R)-(3'-cyclopropyl-3'-hydroxyprop-1'(E)-enyl)-9,10-secopregna-5(E),7(E),10(19)-triene+Bis-TBDMS-trans-calcipotriol
    Cyclopropyl methyl ketoneBis-TBDMS-trans-calcipotriol

    Precursor

    tert-butyldimethylsilyl chloride
    (1S,3R,3'R)-bis(tert-butyldimethylsilyloxy)-20(R)-(3'-cyclopropyl-3'-hydroxyprop-1'(E)-enyl)-9,10-secopregna-5(E),7(E),10(19)-triene
    (2E,4R)-4-[(1R,3aS,4E,7aR)-4-[(2E)-2-[(3S,5R)-3,5-Bis[[(tert-butyl)dimethylsilyl]oxy]-2-methylenecyclohexylidene]ethylidene]octahydro-7a-methyl-1H-inden-1-yl]-1-cyclopropyl-2-penten-1-one
    Cyclopropyl methyl ketone

    Downstream Product

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

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