US 11,717,577 B2
Method for preparing long-acting drug conjugate through preparation of intermediate
Cheongbyeol Shin, Hwaseong-si (KR); Dooseo Jang, Hwaseong-si (KR); Ji Hye Moon, Hwaseong-si (KR); Dong Hyun Kim, Hwaseong-si (KR); and Ji Eun Lee, Hwaseong-si (KR)
Assigned to HANMI PHARM. CO., LTD., Hwaseong-si (KR)
Appl. No. 17/627,890
Filed by HANMI PHARM. CO., LTD., Hwaseong-si (KR)
PCT Filed Jul. 18, 2019, PCT No. PCT/KR2019/008912
§ 371(c)(1), (2) Date Jan. 18, 2022,
PCT Pub. No. WO2021/010532, PCT Pub. Date Jan. 21, 2021.
Prior Publication US 2022/0257788 A1, Aug. 18, 2022
Prior Publication US 2023/0103271 A2, Mar. 30, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61K 38/00 (2006.01); A61K 47/68 (2017.01); A61K 47/60 (2017.01); C07K 14/605 (2006.01)
CPC A61K 47/6811 (2017.08) [A61K 38/00 (2013.01); A61K 47/60 (2017.08); C07K 14/605 (2013.01)] 5 Claims
 
1. A compound having a structure of Formula 2 below or a stereoisomer, a solvate, or a pharmaceutically acceptable salt thereof:

OG Complex Work Unit Chemistry
wherein in Formula 2 above, n is from 200 to 250.