Novel synthesis of 1α,25-dihydroxy-19-norvitamin D from 25-hydroxyvitamin D

Autor: Kazuo Nagasawa, Hazuki Nagai, Asako Toyoda, Tomonari Yamada, Toshio Tsuchida, Junko Abe, Yusuke Moriguchi
Rok vydání: 2009
Předmět:
Zdroj: Tetrahedron. 65:10002-10008
ISSN: 0040-4020
DOI: 10.1016/j.tet.2009.09.115
Popis: 19-Norvitamin D analogs 3a and 3b were synthesized from 25-hydroxyvitamin D, obtained via a bioconversion method. The synthetic route features a highly regio- and stereoselective hydroboration reaction to afford 25-hydroxy-3,5-cyclopropyl-vitamin D derivatives 12 having olefin at the C1–10-position.
Databáze: OpenAIRE