US 11,981,693 B2
Organogermanium compound
Takashi Nakamura, Hakodate (JP); Katsuyuki Sato, Hakodate (JP); and Yasuhiro Shimada, Hakodate (JP)
Assigned to Asai Germanium Research Institute Co., Ltd., Kanagawa (JP)
Appl. No. 17/442,450
Filed by ASAI Germanium Research Institute Co., Ltd., Kawasaki (JP)
PCT Filed Oct. 26, 2020, PCT No. PCT/JP2020/040068
§ 371(c)(1), (2) Date Sep. 23, 2021,
PCT Pub. No. WO2021/080019, PCT Pub. Date Apr. 29, 2021.
Claims priority of application No. 2019-193284 (JP), filed on Oct. 24, 2019.
Prior Publication US 2022/0242890 A1, Aug. 4, 2022
Int. Cl. C07F 7/30 (2006.01)
CPC C07F 7/30 (2013.01) 4 Claims
 
1. A compound of formula (I),

OG Complex Work Unit Chemistry
wherein R1, R2, and R3 are each independently hydrogen or lower alkyl; and X is an alkali metal cation, an ammonium cation, or a quaternary ammonium cation.