Dihydrazide compounds, preparation and uses thereof

Details Dihydrazide compounds, preparation and uses thereof Dihydrazide compounds, preparation and uses thereof

2007-09-17

2011-11-29

Kumar, Shailendra (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

C564S149000, C514S614000, C514S615000

Reexamination Certificate

active

08067636

ABSTRACT:
Disclosed are dihydrazide compounds having formula (I) or (II), wherein R1-R4are alkylene, substituted alkylene, aryl or polyether radical. The preparation and uses for producing medical hydrogel and medicine controlled releasing carrier of said dihydrazide compounds are provided.

REFERENCES:
patent: 4882399 (1989-11-01), Tesoro et al.
patent: 6924312 (2005-08-01), Koya et al.

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