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Last Updated: April 19, 2024

Claims for Patent: 4,568,666


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Summary for Patent: 4,568,666
Title: Carboxylalkyl peptide derivatives
Abstract:This invention encompasses novel carboxyalkyl peptide derivatives which are collagenase inhibitors.
Inventor(s): McCullagh; Keith G. (Princes Risborough, GB), Wadsworth; Harry J. (High Wycombe, GB), Hann; Michael M. (Watlington, GB)
Assignee: G. D. Searle & Co. (Skokie, IL)
Application Number:06/662,129
Patent Claims:1. A compound of the formula: ##STR31## and the pharmaceutically acceptable acid addition salts thereof wherein R'.sub.2 represents hydroxy, alkoxy, cycloalkoxy, aralkoxy or substituted alkoxy wherein the substituent is selected from alkylaminocarbonyl or the group ##STR32## R'.sub.3 represents alkylamino or aralkylamino; and the stereochemistry of the carbon atom marked by the asterisk is R or S or a diastereomeric mixture thereof.

2. A compound according to claim 1 wherein R'.sub.2 is straight or branched chain alkoxy of from about 1 to 6 carbon atoms.

3. A compound according to claim 2 wherein R'.sub.2 is selected from n-propoxy or n-pentoxy.

4. A compound according to claim 1 wherein R'.sub.3 is alkylamino.

5. A compound according to claim 4 wherein said alkylamino is methylamino.

6. A compound according to claim 1 wherein the stereochemistry of the carbon atom marked by the asterisk is R.

7. A compound according to claim 1 of the formula. ##STR33## or a pharmaceutically acceptable acid addition salt thereof.

8. A compound according to claim 1 of the formula ##STR34## or a pharmaceutically acceptable acid addition salt thereof.

9. A method of promoting an antiarthritic effect in a mammal in need thereof comprising administering thereto a collagenase inhibiting effective amount of a compound according to claim 1.

10. A method according to claim 9 wherein said compound is of the formula: ##STR35##

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