Patent ID: 11918671
Assignee: HENKEL AG & CO. KGAA
Field: Pharmaceuticals (Chemistry)
Classification: CPC A | IPC A

Claim 3:
4. The method of claim 1, wherein the agent (B1) comprises a reactive carbonyl compound selected from 4-hydroxy-2-methoxybenzaldehyde, 2-chloro-3,4-dihydroxybenzaldehyde, 2-bromo-3,4-dihydroxybenzaldehyde, 3,4-dihydroxy-5-methoxybenzaldehyde, 2,3-dihydro- 1,5-dimethyl-3-oxo-2-phenyl- 1H-pyrazol e-4-carboxaldehyde, 2,4-dimethoxybenzaldehyde, 4-formyl- 1-methyl quinolinium-p-toluenesulfonate, and combinations thereof.