Tetrapeptide acylhydrazides, their production and use

Details Tetrapeptide acylhydrazides, their production and use Tetrapeptide acylhydrazides, their production and use

1981-10-15

1983-05-10

Phillips, Delbert R.

Drug, bio-affecting and body treating compositions

Immunoglobulin, antiserum, antibody, or antibody fragment,...

Reduced antigenicity, reduced ability to bind complement, or...

2601125E, A61K 3700, C07C10352

Patent

active

043829236

ABSTRACT:
Novel tetrapeptide acylhydrazides, inclusive of acid addition salts thereof, which have the formula: ##STR1## wherein R.sub.1 is hydrogen or methyl, R.sub.2 is lower alkyl; are useful as analgesics.

REFERENCES:
patent: 4264491 (1981-04-01), Smithwick, Jr. et al.
patent: 4277394 (1981-07-01), Fujino et al.
patent: 4337247 (1982-06-01), Fujino et al.
Naturwissenschaften 66, S 625 (1979), M. Fujino et al.

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