Patent ID: 11857565
Assignee: SEAGEN INC.
Field: Pharmaceuticals (Chemistry)
Classification: CPC C  A | IPC A

Claim 8:
9. The Ligand Drug Conjugate compound of claim 8, wherein R1 is —CH2CH2CH2CH3, —CH2CH2CH2CH2CH3, CH2CH2CH2C(CH3)2, —CH2CH2CH2CH2N(CH3)—C(═O)—O-t-Bu, —CH2CH2CH2CH2N(CH3)—C(═O)-t-Bu, —CH2CH2CH2N(CH3)—C(═O)—O-t-Bu, —CH2CH2CH2NH—C(═O)—O-t-Bu, or has the structure of:,