Abstract: Provided herein are processes for the preparation of (S)-2-(2,6-dioxopipelidin-3-yl)-4-((2-fluoro-4-((3-morpholinoazetidin-1-yl) methyl) benzyl)amino)isoindoline-1, 3-dione, or a salt, solvate, hydrate, enantiomer, mixture of enantiomers, or isotopologue thereof, which is useful for treating, preventing, and managing various disorders. Also provided are solid forms of various intermediates and products obtained from the processes.

Abstract: A method for preparing AMG 416, or a pharmaceutically acceptable salt thereof, is provided.

Abstract: A method for preparing AMG 416, or a pharmaceutically acceptable salt thereof, is provided.

Abstract: The instant disclosure is directed to solution phase fragment coupling methods for preparing etelcalcetide and its pharmaceutically acceptable salts.

Abstract: A method for preparing AMG 416, or a pharmaceutically acceptable salt thereof, is provided.

Abstract: A method for preparing AMG 416, or a pharmaceutically acceptable salt thereof, is provided. AMG 416 is a synthetic, eight amino-acid selective peptide agonist of the calcium sensing receptor. It is being developed as an intravenous treatment of secondary hyperparathyroidism (SHPT) in hemodialysis patients with chronic kidney disease-mineral and bone disorder (CKD-MBD).

Abstract: The instant disclosure is directed to solution phase fragment coupling methods for preparing etelcalcetide and its pharmaceutically acceptable salts.

Abstract: A method for preparing AMG 416, or a pharmaceutically acceptable salt thereof, is provided. AMG 416 is a synthetic, eight amino-acid selective peptide agonist of the calcium sensing receptor. It is being developed as an intravenous treatment of secondary hyperparathyroidism (SHPT) in hemodialysis patients with chronic kidney disease—mineral and bone disorder (CKD-MBD).

Abstract: The present invention provides isolated homogeneous polyfunctionalized proteins (e.g., erythropoietin), isolated glycopeptides, and a method for preparing polyfunctionalized peptides and/or proteins via cysteine-free native chemical ligation. In certain embodiments, the invention provides an isolated homogeneous polyfunctionalized protein having the structure (I). In certain other embodiments, the invention provides an isolated glycopeptide having Formula (II). In certain other embodiments, the inventive method is a method for preparing a polyfunctionalized peptide comprising a peptidic backbone made up of four or more amino acids, wherein two or more non-adjacent amino acids are independently substituted with a moiety having the structure (III) -LH. wherein A and L1 are as defined herein.

Abstract: The present invention provides isolated homogeneous polyfunctionalized proteins (e.g., erythropoietin), isolated glycopeptides, and a method for preparing polyfunctionalized peptides and/or proteins via cysteine-free native chemical ligation. In certain embodiments, the invention provides an isolated homogeneous polyfunctionalized protein having the structure (I). In certain other embodiments, the invention provides an isolated glycopeptide having Formula (II). In certain other embodiments, the inventive method is a method for preparing a polyfunctionalized peptide comprising a peptidic backbone made up of four or more amino acids, wherein two or more non-adjacent amino acids are independently substituted with a moiety having the structure (III)-LH. wherein A and L1 are as defined herein.