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Generated: November 22, 2017

DrugPatentWatch Database Preview

Claims for Patent: 4,237,068

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Claims for Patent: 4,237,068

Title: Primary aminoacylanilides
Abstract:Primary amino acylanilides of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen, methyl, ethyl and propyl, R.sub.2 is selected from the group consisting of methyl, ethyl, chlorine, methoxy and ethoxy, R.sub.3 is selected from the group consisting of hydrogen and methyl, R.sub.4 is selected from the group consisting of hydrogen, methyl, and a C.sub.1 -C.sub.4 alkoxy group, R.sub.6 is selected from the group consisting of methyl, ethyl, chlorine, methoxy and ethoxy, R.sub.7 is hydrogen, methyl or ethyl, R.sub.8 is hydrogen, R.sub.9 is hydrogen, methyl or ethyl, R.sub.10 is hydrogen, and n is 0 or 1, with the provisions that (a) when n is 0, R.sub.8 can also be methyl; (b) when n is 1, and R.sub.7 is hydrogen, and R.sub.9 is hydrogen or methyl, then R.sub.10 can also be methyl; (c) when R.sub.1 is hydrogen, R.sub.2 is methyl, R.sub.3 is hydrogen, R.sub.6 is methyl, R.sub.7 is hydrogen, R.sub.8 is hydrogen, and n is 0, then R.sub.4 can be ethoxy or propoxy only; (d) when R.sub.1 is hydrogen, R.sub.2 is methyl, R.sub.3, R.sub.4, R.sub.7 and R.sub.8 are hydrogen, and n is 0, then R.sub.6 is methoxy, ethoxy, or ethyl only; and the therapeutically acceptable salts thereof. Compounds of this type have been found to be effective longlasting cardiac antiarrhythmic agents, especially when administered by the oral route.
Inventor(s): Boyes; Robert N. (Auburn, MA), Duce; Benjamin R. (Westborough, MA), Smith; Emil R. (Shrewsbury, MA), Byrnes; Eugene W. (Holden, MA)
Assignee: Astra Pharmaceutical Products, Inc. (Worcester, MA)
Application Number:05/929,916
Patent Claims: 1. The compound 2-amino-2',6'-propionoxylidide, and the pharmaceutically acceptable salts thereof.

2. The compound (+)-2-amino-2',6'-propionoxylidide, and the pharmaceutically acceptable salts thereof.

3. The compound (-)-2-amino-2',6'-propionoxylidide, and the pharmaceutically acceptable salts thereof.

4. The compound 2-amino-2'-ethyl-6'-methylpropionanilide, and the pharmaceutically acceptable salts thereof.

5. The compound 3-amino-2',6'-butyroxylidide, and the pharmaceutically acceptable salts thereof.

6. The compound 2-amino-2',6'-diethylpropionanilide, and the pharmaceutically acceptable salts thereof.

7. The compound 3-amino-2',4',6'-propionomesidide, and the pharmaceutically acceptable salts thereof.

8. The compound 2-amino-4'-butoxy-2',6'-dimethylpropionanilide, and the pharmaceutically acceptable salts thereof.

9. The compound 3-amino-2'-methyl-6'-ethylbutyranilide, and the pharmaceutically acceptable salts thereof.

10. The compound 3-amino-2',4',6'-butyromesidide, and the pharmaceutically acceptable salts thereof.

11. The compound 3-amino-2',6'-valeroxylidide, and the pharmaceutically acceptable salts thereof.

12. The compound 3-amino-2',6'-propionoxylidide and the pharmaceutically acceptable salts thereof.

13. The compound 2-amino-2',6'-butyroxylidide and the pharmaceutically acceptable salts thereof.

14. The compound 3-amino-2-methyl-2',6'-propionoxylidide and the pharmaceutically acceptable salts thereof.
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