Patent ID: 11891602
Assignee: TORAY INDUSTRIES, INC.
Field: Biotechnology (Chemistry)
Classification: CPC C | IPC C

Claim 7:
8. The method according to claim 1,
wherein the dehydration condensation agent is 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chloride, O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexa-fluoroophosphate, N-(3′-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride, 2-chloro-1-methylpyridinium iodide, or chloro-N,N,N′,N′-tetramethylformamidinium hexafluorophosphate,
the N-hydroxy nitrogen-containing aromatic compound is 1-hydroxy-7-azabenzotriazole,
the cyano(hydroxyimino)acetic acid ester is ethyl cyano(hydroxyimino)acetate, and
the N-hydrocarbon-substituted imidazole derivative is N-methylimidazole.