Patent ID: 11969440
Assignee: WEBIOTREE CO., LTD.
Field: Pharmaceuticals (Chemistry)
Classification: CPC A  C  Y | IPC A

Claim 4:
5. A pharmaceutical composition comprising: a metal (hydr)oxide; a compound comprising at least one or more hydroxyl groups in the compound or a salt thereof, and an additive,
wherein the metal (hydr)oxide is one or more selected from the compounds represented by the following Chemical Formulas 3 to 5:

[(M2+(1-x)M3+x(OH)2)((An−)z)]yH2O  [Chemical Formula 3]

(in Chemical Formula 3,
M2+ is a divalent metal cation selected from the group consisting of Mg2+, Ni2+, Cu2+, Co2+, and Zn2+,
M3+ is a trivalent metal cation selected from the group consisting of Al3+Fe3+V3−, Ti3+, Mn3+, and Ga3+,
x is a number having a range of greater than 0 and less than or equal to 0.5,
A is an anion selected from the group consisting of CO32−, NO3−, Br−, Cl−, SO42−, HPO42− and F−,
n is a charge number of the anion A,
n is a number having a range of 0.5 or more and 2 or less,
z is a number having a range of 0 or more and 1 or less, and
y is a positive number greater than 0),

[(M2+(OH)2-x)((An−)z)]yH2O  [Chemical Formula 4]

(in Chemical Formula 4,
M2+ is a divalent metal cation selected from the group consisting of Mg2+, Ni2+, Cu2+, Co2+, and Zn2+,
x is a number having a range of 0 or more and 0.4 or less,
A is an anion selected from the group consisting of CO32−, NO3−, Br−, Cl−, SO42−, HPO42−, and F−,
n is a charge number of anion A,
n is a number having a range of 0 or more and 2 or less,
z is a number having a range of 0 or more and 1 or less, and
y is a positive number greater than 0), and

[(M2+(O)2-x)((An−)z)]yH2O  [Chemical Formula 5]

(in Chemical Formula 5,
M2+ is Mg2+, Ni2+, Cu2+, or Zn2+,
x is a number of 1 or more and less than 2,
A is an anion selected from the group consisting of CO32−, NO3−, Br−, Cl−, SO42−, HPO42− and F−,
n is a charge number of the anion A,
n is a number having a range of 0 or more and 2 or less,
z is a number having a range of 0 or more and 1 or less, and
y is a positive number greater than 0),
wherein the compound comprising at least one or more hydroxyl groups in the compound or a salt thereof, is one or more compounds selected from the compounds represented by the following Chemical Formula 1 or Chemical Formula 2:, (in Chemical Formula 1,
R1 to R6 are each independently a hydrogen atom, a halogen atom, a hydroxyl group, an alkoxy group, an ester group, an acyl group, an aromatic ring or a nitro group, and
at least one or more among R1 to R6 are hydroxyl groups),, (in Chemical Formula 2,
A is a nitrogen atom or an oxygen atom,
if A is a nitrogen atom, R1 may be a hydrogen atom, a halogen atom, a hydroxyl group, or an alkyl group, and if A is an oxygen atom, R1 does not have a substituent,
R2 to R11 are each independently a hydrogen atom, a halogen atom, a hydroxyl group, a methoxy group, an ester group, an acyl group, or a nitro group, and
at least one or more among R1 to R11 are hydroxyl groups).