Patent ID: 9463252
Filing Date: 2016-10-11
CPC Classification: A61K,A61P,C07K,G01N,Y02A

Claim Text:
1. A compound having the formula: or a pharmaceutically acceptable salt or solvate thereof; wherein L is Ligand Unit, LU is a Linker unit, and D is a Drug unit; L is a peptide, polypeptide or protein that specifically binds to an antigen; LU has the formula —W W w is an integer ranging from 1 to 12, A is Stretcher unit, and a is 1 or 2; p is an integer ranging from 1 to 20; and D has the formula: wherein the wavy line indicates the peptide bond to LU; R R R R or R 4 and R 5 jointly form a carbocyclic ring and have the formula —(CR a R b ) n — wherein R a and R b are independently selected from the group consisting of —H and —C 1 -C 8 alkyl and n is selected from the group consisting of 2, 3, 4, 5 and 6; R R each R R each X