110996-24-2

Upstream product

• 116355-97-6 3-methyl-4-phenylsulfonyl-1,1,1-trifluoro-2-trifluoromethylbutane-2-ol 2-methoxymethyl ether 
• 116500-73-3 26,26,26,27,27,27-hexafluoro-ergosta-5,7,22(E)-triene-3β,25-diol 25-methoxymethyl ether 
• 93748-51-7 (S)-2-[(3S,9S,10R,13R,14R,17R)-10,13-Dimethyl-3-(tetrahydro-pyran-2-yloxy)-2,3,4,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl]-propionaldehyde 
• 116355-98-7 C₄₁H₅₆F₆O₇S 
• 116355-98-7 C₄₁H₅₆F₆O₇S 

Relevant academic research and scientific papers

Fluorine-containing vitamin D2 derivatives

A fluorine-containing vitamin D2 derivative represented by the following formula STR1 wherein R1 represents a methyl or trifluoromethyl group, and R2 represents a trifluoromethyl group when R1 is a methyl group,

PREPARATION OF FLUORINE-MODIFIED 25-HYDROXYVITAMIN D2: 28,28,28-TRIFLUORO-, 26,26,26,27,27,27-HEXAFLUORO- AND 28-NOR-26,26,26,27,27,27-HEXAFLUORO-25-HYDROXIVITAMIN D2

Preparations of the titled fluorinated vitamin D2 analogs (3, 4, and 5,) were efficiently achieved through reactions of the C22-aldehyde (6) with phenylsulphone derivatives (7,8 and 9).