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Tri-substituted aluminum salts or di-substituted aluminum salts of carboxyl group-containing, pharmaceutically effective compounds

Assignee: Aska Pharmaceutical Co Ltd
•
Filing: 1974-11-26
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Granted: 1976-10-26
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Expires: 1994-11-26
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Abstract

Abstract A process for the preparation of di- or tri-substituted aluminum salts of carboxyl group-containing, pharmaceutically effective compounds which comprises reacting up to three types of carboxyl group-containing, pharmaceutically effective compounds with an organic aluminum compound expressed by the following formula; ##EQU1## wherein R 1 and R 2 , which may be the same or different, stand for an aliphatic, alicyclic or aromatic hydrocarbon residue having up to 10 carbon atoms, and R 3 stands for a hydrocarbon residue as defined with respect to R 1 and R 2 , which may be the same as, or different from, R 1 and R 2 , or a hydrocarbyloxy group of the formula OR 4 in which R 4 is an aliphatic, alicyclic or aromatic hydrocarbon residue having up to 10 carbon atoms, and a novel di- or tri-substituted aluminum salts of carboxyl group-containing, pharmaceutically effective compounds.

Inventors

  • 👤 Yasushi Suzuki
  • 👤 Toshihisa Itaya

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 13:40
CPC Classifications
C; C07; C07D; C07D499/00; C07F; C07F5/00; C07F5/06; C07F5/069; Y; Y10; Y10S; Y10S206/00; Y10S206/832; Y10S206/833

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 14 words
A low polymer of aluminum tris-(o-acetoxybenzoate) obtained by polymerizing the monomer through coordination bonds.
Claim 2
Dependent Claim 14 words
A low polymer of aluminum tris-(o-acetoxybenzoate) obtained by polymerizing the monomer through coordination bonds.
Claim 3
Dependent Claim 15 words
A low polymer of monohydroxy aluminum bis-(o-acetoxybenzoate) obtained by polymerizing the monomer through coordination bonds.
Claim 4
Dependent Claim 15 words
A low polymer of monohydroxy aluminum bis-(o-acetoxybenzoate) obtained by polymerizing the monomer through coordination bonds.
Claim 5
Dependent Claim 14 words
A low polymer of aluminum tris-[N-(3'-trifluoromethylphenyl)-anthranilate] obtained by polymerizing the monomer through coordination bonds.
Claim 6
Dependent Claim 14 words
A low polymer of aluminum tris-[N-(3'-trifluoromethylphenyl)-anthranilate] obtained by polymerizing the monomer through coordination bonds.

References Cited (Backward Citations)

AU218741B2 Cited
US3492329A Cited
US3173934A Cited
US3184490A Cited
US3409655A Cited
US3865857A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-10-26 1980-04-26 1980-10-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-10-26 1984-04-26 1984-10-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-10-26 1988-04-26 1988-10-26 $7700.00 Window Closed / Lapsed

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