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US 5,780,454 AGranted
Boronic ester and acid compounds
AssigneeProScript, Inc.
InventorsJulian Adams, Yu-Ting Ma, Ross Stein, Matthew Baevsky, Louis Grenier, Louis Plamondon
Life of this patent
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Abstract
Disclosed herein is a method for reducing the rate of degradation of proteins in an animal comprising contacting cells of the animal with certain boronic ester and acid compounds. Also disclosed herein are novel boronic ester and acid compounds, their synthesis and uses.
Claims22
A compound having the formula:
- ##STR60## or a pharmaceutically acceptable salt thereof;
- wherein P is R.sup.7 --C(O)-- or R.sup.7 --SO.sub.2 --, where R.sup.7 is pyrazinyl;
- X.sup.2 is --C(O)--NH--;
- R is hydrogen or alkyl;
- R.sup.2 and R.sup.3 are independently hydrogen, alkyl, cycloalkyl, aryl, or --CH.sub.2 --R.sup.5 ;
- R.sup.5, in each instance, is one of aryl, aralkyl, alkaryl, cycloalkyl, or --W--R.sup.6, where W is a chalcogen and R.sup.6 is alkyl;
- where the ring portion of any of said aryl, aralkyl, or alkaryl in R.sup.2, R.sup.3 and R.sup.5 can be optionally substituted by one or two substituents independently selected from the group consisting of C.sub.1-6 alkyl, C.sub.3-8 cycloalkyl, C.sub.1-6 alkyl(C.sub.3-8)cycloalkyl, C.sub.2-8 alkenyl, C.sub.2-8 alkynyl, cyano, amino, C.sub.1-6 alkylamino, di(C.sub.1-6)alkylamino, benzylamino, dibenzylamino, nitro, carboxy, carbo(C.sub.1-6)alkoxy, trifluoromethyl, halogen, C.sub.1-6 alkoxy, C.sub.6-10 aryl, C.sub.6-10 aryl(C.sub.1-6)alkyl, C.sub.6-10 aryl(C.sub.1-6)alkoxy, hydroxy, C.sub.1-6 alkylthio, C.sub.1-6 alkylsulfinyl, C.sub.1-6 alkylsulfonyl, C.sub.6-10 arylthio, C.sub.6-10 arylsulfinyl, C.sub.6-10 arylsulfonyl, C.sub.6-10 aryl, C.sub.1-6 alkyl(C.sub.6-10) aryl, and halo(C.sub.6-10)aryl;
- Z.sup.1 and Z.sup.2 are independently one of hydroxy, alkoxy, or aryloxy, or together Z.sup.1 and Z.sup.2 form a moiety derived from a dihydroxy compound having at least two hydroxy groups separated by at least two connecting atoms in a chain or ring, said chain or ring comprising carbon atoms, and optionally, a heteroatom or heteroatoms which can be N, S, or O;
- and
- A is zero.
7 more elements
The compound N-(2-pyrazine)carbonyl-L-phenylalanine-L-leucine boronic acid, or a pharmaceutically acceptable salt or boronate ester thereof.
A compound having the formula:
- ##STR61## or a pharmaceutically acceptable salt thereof;
- wherein P is R.sup.7 --C(O)-- and R.sup.7 is pyrazinyl;
- X.sup.2 is --C(O)--NH--;
- R is hydrogen or alkyl;
- R.sup.2 and R.sup.3 are independently hydrogen, alkyl, cycloalkyl, aryl, or --CH.sub.2 --R.sup.5 ;
- R.sup.5, in each instance, is one of aryl, aralkyl, alkaryl, cycloalkyl, or --W--R.sup.6, where W is a chalcogen and R.sup.6 is alkyl;
- where the ring portion of any of said aryl, aralkyl, or alkaryl in R.sup.2, R.sup.3 and R.sup.5 can be optionally substituted by one or two substituents independently selected from the group consisting of C.sub.1-6 alkyl, C.sub.3-8 cycloalkyl, C.sub.1-6 alkyl(C.sub.3-8)cycloalkyl, C.sub.2-8 alkenyl, C.sub.2-8 alkynyl, cyano, amino, C.sub.1-6 alkylamino, di(C.sub.1-6)alkylamino, benzylamino, dibenzylamino, nitro, carboxy, carbo(C.sub.1-6)alkoxy, trifluoromethyl, halogen, C.sub.1-6 alkoxy, C.sub.6-10 aryl, C.sub.6-10 aryl(C.sub.1-6)alkyl, C.sub.6-10 aryl(C.sub.1-6)alkoxy, hydroxy, C.sub.1-6 alkylthio, C.sub.1-6 alkylsulfinyl, C.sub.1-6 alkylsulfonyl, C.sub.6-10 arylthio, C.sub.6-10 arylsulfinyl, C.sub.6-10 arylsulfonyl, C.sub.6-10 aryl, C.sub.1-6 alkyl (C.sub.6-10)aryl, and halo(C.sub.6-10)aryl;
- Z.sup.1 and Z.sup.2 are independently one of hydroxy, alkoxy, or aryloxy, or together Z.sup.1 and Z.sup.2 form a moiety derived from a dihydroxy compound having at least two hydroxy groups separated by at least two connecting atoms in a chain or ring, said chain or ring comprising carbon atoms, and optionally, a heteroatom or heteroatoms which can be N, S, or O;
- and
- A is zero.
7 more elements
Dependencies are inferred from the claim text.