发明名称 |
Ultraviolet irradiation apparatus for photochemical reaction and preparation process of vitamin D derivative making use of the same |
摘要 |
A process for preparing a vitamin D derivative including providing an ultraviolet irradiation apparatus for photochemical reactions, which has an ultraviolet radiation-emitting lamp, an optical system which receives light from the ultraviolet radiation-emitting lamp and emits ultraviolet rays having a specific wavelength, and a quartz rod which receives the ultraviolet rays having the specific wavelength from the optical system and emits the ultraviolet rays, irradiating a solution of a provitamin D derivative with the ultraviolet rays emitted from the quartz rod to cause a photochemical reaction to the provitamin D derivative solution, thereby forming a previtamin D derivative, and subjecting the previtamin D derivative to a thermal isomerization reaction to prepare the vitamin D derivative.
|
申请公布号 |
US6902654(B2) |
申请公布日期 |
2005.06.07 |
申请号 |
US20030727507 |
申请日期 |
2003.12.05 |
申请人 |
CHUGAI SEIYAKU KABUSHIKI KAISHA |
发明人 |
MICHISHITA TADAO;WATANABE SATOSHI;KATOH MASAHIRO;MIKAMI TETSUHIRO;TSUZAKI KANAME;OIKAWA KOJI;UEHARA MAKOTO |
分类号 |
B01J19/12;C07C401/00;(IPC1-7):C07C401/00 |
主分类号 |
B01J19/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|