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US 12,459,888 B2 |
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| Isotope-enriched 3-amino-1-propanesulfonic acid derivatives and uses thereof |
| Jiasheng Lu, Shanghai (CN); Jiamin Gu, Suzhou (CN); Xinyong Lv, Suzhou (CN); Guowei Song, Suzhou (CN); Dongdong Wu, Suzhou (CN); Daiqiang Hu, Suzhou (CN); Jun Gu, Suzhou (CN); Gang Chen, Suzhou (CN); Xiang Ji, Suzhou (CN); Xiuchun Zhang, Suzhou (CN); Jinchao Ai, Suzhou (CN); and Xianqi Kong, Dollard-des-Ormeaux (CA) |
| Assigned to RISEN (SUZHOU) PHARMA TECH CO., LTD., Suzhou (CN) |
| Filed by RISEN (SUZHOU) PHARMA TECH CO., LTD., Jiangsu (CN) |
| Filed on Jan. 19, 2024, as Appl. No. 18/417,291. |
| Application 18/417,291 is a continuation of application No. 17/993,389, filed on Nov. 23, 2022, abandoned. |
| Application 17/993,389 is a continuation of application No. 17/140,450, filed on Jan. 4, 2021, abandoned. |
| Application 17/140,450 is a continuation of application No. 16/655,311, filed on Oct. 17, 2019, granted, now 10,954,188, issued on Mar. 23, 2021. |
| Application 16/655,311 is a continuation of application No. 15/476,255, filed on Mar. 31, 2017, granted, now 10,472,323, issued on Nov. 12, 2019. |
| Claims priority of application No. 201710168819.2 (CN), filed on Mar. 21, 2017. |
| Prior Publication US 2024/0158343 A1, May 16, 2024 |
| This patent is subject to a terminal disclaimer. |
| Int. Cl. C07C 309/14 (2006.01); C07B 59/00 (2006.01); C07C 309/15 (2006.01); C07C 309/59 (2006.01); C07D 233/61 (2006.01) |
