140928-02-5Relevant articles and documents
18-Substituted Derivatives of Vitamin D: 18-Acetoxy-1α,25-dihydroxyvitamin D3 and Related Analogues
Maynard, David F.,Norman, Anthony W.,Okamura, William H.
, p. 3214 - 3217 (1992)
The bridged ether 6, produced via light-induced lead tetraacetate oxidation of Grundmann's alcohol 5, was transformed in three to four steps to the CD-ring ketones 9b and 10 which were then transformed via Horner-Wittig coupling to the 18-acetoxy analogue