US 12,473,310 B2
Vitamin D3 phosphate and pharmaceutically acceptable salts thereof, pharmaceutical compositions comprising the compound and methods for preparing the compound
Stuart Allen Jones, London (GB); and Makiko Kawashita, London (GB)
Assigned to King's College London, London (GB)
Appl. No. 18/031,836
Filed by King's College London, London (GB)
PCT Filed Oct. 20, 2021, PCT No. PCT/GB2021/052702
§ 371(c)(1), (2) Date Apr. 13, 2023,
PCT Pub. No. WO2022/084669, PCT Pub. Date Apr. 28, 2022.
Claims priority of application No. 2016614 (GB), filed on Oct. 20, 2020.
Prior Publication US 2024/0116959 A1, Apr. 11, 2024
Int. Cl. C07F 9/09 (2006.01)
CPC C07F 9/095 (2013.01) 6 Claims
 
1. A compound of the formula (I):

OG Complex Work Unit Chemistry
or a pharmaceutically acceptable salt thereof, wherein the compound is more than 80% pure.
 
5. A compound of the formula (I):

OG Complex Work Unit Chemistry
wherein the compound is in the form of a di-sodium salt the compound is more than 80% pure.
 
6. A compound of formula (IA):

OG Complex Work Unit Chemistry
wherein the compound is in the form of a di-sodium salt the compound is more than 80% pure.