US 8,507,670 B2 · Matrix metalloproteinase inhibitors

Abstract

The present invention relates to β-hydroxy and amino substituted carboxylic acids, which act as matrix metalloprotease inhibitors, particularly diastereomerically pure β-hydroxy carboxylic acids, corresponding processes for the synthesis of and pharmaceutical compositions containing the compounds of the present invention. Compounds of the present invention are useful in the treatment of various inflammatory, autoimmune and allergic diseases, such as methods of treating asthma, rheumatoid arthritis, COPD, rhinitis, osteoarthritis, psoriatic arthritis, psoriasis, pulmonary fibrosis, wound healing disorders, pulmonary inflammation, acute respiratory distress syndrome, periodontitis, multiple sclerosis, gingivitis, atherosclerosis, neointimal proliferation, which leads to restenosis and ischemic heart failure, stroke, renal diseases, tumor metastasis, and other inflammatory disorders characterized by the over-expression and over-activation of a matrix metalloproteinase using the compounds.

A process for preparing a compound of Formula XX comprising:

a. reacting a compound of Formula LXVII
R1-hal Formula LXVII
with a compound of Formula LXVIII
(OH)2B-Q-CHO Formula LXVIII
to give a compound of Formula LXIX, carried out in the presence of a metal catalyst such as tetrakis(triphenylphosphine) palladium (0), tetrakis(tricyclohexylphosphine) palladium (0), tetrakis(tri-tert-butylphosphine) palladium (0), or palladium acetate and triphenylphosphine in the presence of a base such as potassium carbonate or cesium carbonate, and an organic solvent;
R1-Q-CHO Formula LXIX
b. converting the compound of Formula LXIX to a compound of Formula LXX, carried out by reacting with phosphonate carbanions (produced in situ by treating trimethylphosphonoacetate or triethylphosphonoacetate with a base such as sodium hydride, potassium hydride, potassium tert-butoxide, sodium tert-butoxide, potassium carbonate, triethylamine in an organic solvent;
c. hydrogenating the compound of Formula LXX to give a compound of Formula LXXI, carried with palladium on carbon in the presence of hydrogen, in a suitable solvent such as methanol, ethanol, propanol, tetrahydrofuran, ethyl acetate, or mixture(s) thereof;
d. reducing the compound of Formula LXXI to give a compound of Formula LXXII, carried out in the presence of a reducing agent such as lithium aluminum hydride, lithium triethyl borohydride, or sodium borohydride, in the presence of an additive such as lithium chloride or aluminum chloride, in an organic solvent;
e. oxidizing the compound of Formula LXXII to give a compound of Formula LXXIII, carried out using a Swern oxidation reaction (dimethylsulfoxide and oxalyl chloride) or Corey-Kim oxidation (N-chlorosuccinimide and dimethylsulfide) in the presence of a base such as triethylamine or diisopropylethylamine in a solvent such as dichloromethane or toluene, or is oxidized using dichloromethane or chloroform with an oxidizing agent such as a Dess-Martin reagent, pyridinium chlorochromate (PCC), or pyridinium dichromate (PDC), or the oxidation is carried out catalytically using 2,2,6,6,-tetramethylpiperidine N-oxyl (TEMPO) or 4-substituted derivatives such as 4-methoxy-TEMPO, 4-ethoxy-TEMPO, 4-acetoxy-TEMPO, 4-acetamino-TEMPO, 4-hydroxy-TEMPO, 4-benzoyloxy-TEMPO, 4-amino-TEMPO, N,N-dimethylamino-TEMPO, or 4-oxo-TEMPO as a catalyst, in the presence of a co-catalyst such as potassium bromide or sodium bromide, with an oxidant such as sodium hypochlorite, potassium hypochlorite, calcium hypochlorite, sodium hypobromite, or potassium hypobromite in a solvent or mixtures of solvent;
f. reacting the compound of Formula LXXIII with a compound of Formula LXXIV
to give a compound of Formula LXXV, carried out by generating the enolates with titanium chloride, dibutyl boron triflate, dialkyl boron chloride, or tin(II) triflate, in the presence of a base such as diisopropylethylamine, tetramethylethelenediamine, tributylamine, N-ethylpiperidine, 1,4-diazabicyclo[2.2.2]octane, 1,8-Diazabicyclo[5.4.0]undec-7-ene, tetramethylpropylenediamine, or (−) sparteine;
and
g. hydrolyzing the compound of Formula LXXV to give a compound of Formula XX, carried out with hydrogen peroxide and lithium hydroxide, in the presence of a solvent or mixture(s) of solvents,
wherein
R2 is a substituted or (un)substituted benzotriazinone wherein the substituents are halogen, alkyl or alkoxy;
E is an alkyl group;
hal is Cl, Br or I;
Q is an optionally substituted phenyl or heteroaryl wherein the optional substituents are alkyl or fluoro;
R1 is, optionally substituted aryl, heterocyclyl, or heteroaryl, wherein the optional substituents are selected from one or more of alkyl, halogen, hydroxy, trifluoroalkyl, OCF3, SO2alkyl, or alkoxy;
Y and W are independently oxygen or sulphur;
and
R10 is alkyl, aryl, or aralkyl.

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Matrix metalloproteinase inhibitors

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Matrix metalloproteinase inhibitors

Life of this patent

Abstract

Claims2