Patent ID: 11932726
Assignee: NEKTAR THERAPEUTICS
Field: Pharmaceuticals (Chemistry)
Classification: CPC C  A | IPC A  C

Claim 43:
44. The method of claim 43, wherein the base is selected from the group consisting of pyridine, 4-dimethylaminopyridine, N,N-diisopropylethylamine, 2,6-di-tert-butylpyridine, N-methylimidazole, N-methylmorpholine, 2,6-lutidine, 2,4,6-collidine, N,N,2,6-tetramethylpyridine-4-amine, N,N,N′,N′-tetramethyl-1,6-hexamethyldiamine, N,N′,N′,N″,N″-pentamethyldiethylenetriamine, hexamethylenetetramine and insoluble-polymer-bound forms of any of the foregoing.