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公开(公告)号:US20220073469A1
公开(公告)日:2022-03-10
申请号:US17418480
申请日:2019-12-24
发明人: Weichun CHEN , Guocai ZHANG
IPC分类号: C07D221/22
摘要: The present invention relates to a process for the preparation of a compound (I) or pharmaceutically acceptable salt thereof, which is useful as the key intermediate for the synthesis of compounds for prophylaxis and treatment of a disease associated with the deposition of β-amyloid in the brain, in particular Alzheimer's disease, and other diseases such as cerebral amyloid angiopathy, hereditary cerebral hemorrhage with amyloidosis, Dutch-type (HCHWA-D), multi-infarct dementia, dementia pugilistica and Down syndrome.
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公开(公告)号:US20220098189A1
公开(公告)日:2022-03-31
申请号:US17423069
申请日:2020-01-16
发明人: Junli CHEN , Weichun CHEN , Lin WANG
IPC分类号: C07D471/04
摘要: The present invention relates to a process for synthesizing a compound of formula (I), or a pharmaceutically acceptable salt thereof, which is useful for prophylaxis and treatment of a viral disease in a patient relating to hepatitis B infection or a disease caused by hepatitis B infection.
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公开(公告)号:US20230048657A1
公开(公告)日:2023-02-16
申请号:US17780127
申请日:2020-11-27
发明人: Weichun CHEN , Christian JENNY , Hasane RATNI , Guocai ZHANG , Fugui ZHANG
IPC分类号: C07D487/04 , C07C213/08 , C07C215/34 , C07C57/58 , C07C51/353 , C07C51/41 , C07C51/60 , C07C277/08
摘要: The present invention relates to a process for synthesizing large scale a compound of formula (I), or pharmacuetically acceptable salt thereof, which is useful as the key intermediate for the synthesis of compounds for prophylaxis and treatment of a disease associated with the deposition of β-amyloid in the brain, in particular Alzheimer's disease, and other diseases such as cerebral amyloid angiopathy, hereditary cerebral hemorrhage with amyloidosis, Dutch-type (HCHWA-D), multi-infarct dementia, dementia pugilistica and Down syndrome.
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公开(公告)号:US20220162212A1
公开(公告)日:2022-05-26
申请号:US17433961
申请日:2020-02-25
发明人: Weichun CHEN , Lin WANG , Qiwu ZHAO
IPC分类号: C07D487/04 , C07D207/277
摘要: The present invention relates to a process for synthesizing a compound (I), or pharmaceutically acceptable salt thereof, which is useful for prophylaxis and treatment of a viral disease in a patient relating to hepatitis B infection or a disease caused by hepatitis B infection.
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