Alkanolamine derivatives

Claim 2

An alkanolamine selected from compounds of the formula: ##STR42##wherein A is alkylene of from 2 to 12 carbon atoms, wherein R 1 is hydrogen, or alkyl, halogenoalkyl, alkenyl or cycloalkyl each of up to 10 carbon atoms, or aryl of the formula: ##STR43##wherein R 2 , R 3 , R 12 and R 13 , which may be the same of different, each is hydrogen, halogen, hydroxy, amino, nitro or cyano, alkyl, cycloalkyl, alkenyl, alkynyl, alkoxy, alkylthio, cycloalkoxy, alkenyloxy, alkynyloxy or alkanoyl each of up to 6 carbon atoms, or aryl, aryloxy or aralkoxy each of up to 12 carbon atoms; or wherein R 2 and R 3 together, and/or R 12 and R 13 together, are trimethylene, tetramethylene, 1-oxotetramethylene, propenylene, but-2-enylene or buta-1,3-dienylene such that together with two adjacent carbon atoms of the benzene ring they form respectively indanyl, 5,6,7,8- tetrahydronaphthyl, 5-oxo-5,6,7,8-tetrahydronaphthyl, indenyl, 5,8-dihydronaphthyl or naphthyl; wherein R 4 is hydrogen, hydroxy or hydroxymethyl or aralkoxy of up to 12 carbon atoms; wherein R 14 is hydrogen, amino or dialkylamino of up to 12 carbon atoms; wherein X is carbonyl (-CO-) and wherein Y is a direct link, or alkylene, oxyalkylene or alkyleneoxy each of up to 6 carbon atoms, or except when R 1 is hydrogen is oxygen; and the acid-addition salts thereof.

Claim 3

An alkanolamine as claimed in claim 1 selected from compounds of the formula given in claim 1 wherein A is ethylene, trimethylene, tetramethylene, hexamethylene, dodecamethylene, 1-methylethylene, 2-methylethylene or 1,1-dimethylethylene; wherein R 1 is hydrogen, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, t-butyl, n-pentyl, n-octyl, trifluoromethyl, allyl, cyclopropyl, cyclopentyl or cyclohexyl, or aryl of the formula: ##STR44##wherein R 2 , R 3 , R 12 and R 13 , which may be the same or different, each is hydrogen, fluorine, chlorine, bromine, iodine, hydroxy, amino, nitro, cyano, methyl, ethyl, n-propyl, cyclopropyl, cyclopentyl, allyl, ethynyl, methoxy, isopropoxy, methylthio, cyclopentyloxy, allyloxy, propargyloxy, formyl, acetyl, phenyl, phenoxy or benzyloxy, or wherein R 2 and R 3 together and/or R 12 and R 13 together are trimethylene, tetramethylene, 1-oxotetramethylene, propenylene, but-2-enylene or buta-1,3-dienylene; wherein R 4 is hydrogen, hydroxy, hydroxymethyl or benzyloxy; wherein R 14 is hydrogen, amino or dimethylamino; wherein X is carbonyl and wherein Y is a direct link, or methylene, ethylene, oxymethylene methyleneoxy, ethyleneoxy, trimethyleneoxy, 1-methylethylideneoxy or 1-methylpropylideneoxy, or except when R 1 is hydrogen is oxygen; and the acid-addition salts thereof.

Claim 4

An alkanolamine as claimed in claim 1 selected from compounds of the formula given in claim 1 wherein A is ethylene, 1-methylethylene or 1,1-dimethylethylene, R 1 is hydrogen, or alkyl, alkenyl or cycloalkyl each of up to 6 carbon atoms, or trifluoromethyl, monohydroxyphenyl or dihydroxyphenyl, Y is a direct link, X is carbonyl, R 2 is hydrogen or chloro, cyano, nitro, methyl, allyl, methoxy or allyloxy in the ortho position of the benzene ring and R 3 and R 4 are both hydrogen; and the acid-addition salts thereof.

Claim 5

An alkanolamine as claimed in claim 1 selected from compounds of the formula given in claim 1 wherein A is ethylene, 1-methylethylene or 1,1-dimethylethylene, R 1 is phenyl, R 12 is hydrogen, chloro, nitro, methyl or methoxy, R 13 and R 14 are both hydrogen, Y is methylene, ethylene or methyleneoxy, X is carbonyl, R 2 is hydrogen or chloro, cyano, nitro, methyl, allyl, methoxy or allyloxy in the ortho- or meta- position of the benzene ring and R 3 and R 4 are both hydrogen; and the acid-addition salts thereof.

Claim 6

The alkanolamine as claimed in claim 1 selected from compounds of the formula given in claim 1 wherein A is ethylene, 1-methylethylene or 1,1-dimethylethylene, R 1 is hydrogen or alkyl of up to 6 carbon atoms, Y is methyleneoxy, X is carbonyl, R 2 , R 3 and R 4 have the meanings stated in claim 3; and the acid-addition salts thereof.

Claim 7

An alkanolamine as claimed in claim 1 selected from compounds of the formula given in claim 1 wherein A is ethylene, 1-methylethylene or 1,1-dimethylethylene, R 1 is alkyl or cycloalkyl each of up to 6 carbon atoms or phenyl, R 12 is hydrogen, methyl, methoxy or phenyl, R 13 and R 14 are both hydrogen, Y is a direct link or methylene, X is carbonyl, R 2 is hydrogen or hydroxy, R 3 is hydrogen and R 4 is hydroxy; and the acid-addition salts thereof.

Claim 8

An alkanolamine as claimed in claim 1 selected from compounds of the formula given in claim 1 wherein A is ethylene, 1-methylethylene or 1,1-dimethylethylene, R 1 is alkyl of up to 6 carbon atoms, Y is oxygen or methyleneoxy, X is carbonyl and R 2 , R 3 and R 4 have the meanings stated in claim 7; and the acid-additions salts thereof.

Claim 9

An alkanolamine as claimed in claim 1 selected from compounds of the formula given in claim 1 wherein A is ethylene, R 1 is phenyl, R 2 , R 3 , R 4 , R 12 , R 13 and R 14 are all hydrogen, X is carbonyl and Y is a direct link, or alkylene or alkyleneoxy each of up to 6 carbon atoms, and the acid-addition salts thereof.

Claim 10

An alkanolamine as claimed in claim 1 selected from compounds of the formula given in claim 1 wherein A is ethylene, R 1 is alkyl, alkenyl or cycloakyl each of up to 6 carbon atoms, R 2 , R 3 and R 4 are all hydrogen, X is carbonyl and Y is a direct link; and the acid-addition salts thereof.

Claim 11

An alkanolamine as claimed in claim 1 selected from: 1-phenoxy-3-β-benzamidoethylamino-2-propanol; 1-phenoxy-3-β-phenylacetamidoethylamino-2-propanol; 1-phenoxy-3-β-phenoxyacetamidoethylamino-2-propanol; 1-phenoxy-3-(α-methyl-β-phenylacetamidoethyl)amino-2-propanol; 1-phenoxy-3-β-pivalamidoethylamino-2-propanol; 1-phenoxy-3-(β-isobutyramido-α-methylethyl)amino-2-propanol; 1-(2-nitrophenoxy)-3-β-isobutyramidoethylamino-2-propanol; 1-phenoxy-3-β-propionamidoethylamino-2-propanol; 1-phenoxy-3-β-hydroxyacetamidoethylamino-2-propanol; 1-(2-cyanophenoxy)-3-β-propionamidoethylamino-2-propanol; 1-phenoxy-3-β-(2-chlorophenylacetamidoethyl)amino-2-propanol; 1-phenoxy-3-β-butyramidoethylamino-2-propanol; 1-phenoxy-3-β-isobutyramidoethylamino-2-propanol; 1-phenoxy-3-β-(4-methoxyphenylacetamidoethyl)amino-2propanol; 1-phenoxy-3-β-acetamidoethylamino-2-propanol; 1-(2-methoxyphenoxy)-3-β-isobutyramidoethylamino-2-propanol; 1-phenoxy-3-(α,α-dimethyl-β-isobutyramidoethyl)amino-2-propanol; and 1-phenoxy-3-(α,α-dimethyl-β-phenylacetamidoethyl)amino-2-propanol; and the acid-addition salts thereof.

Claim 12

An acid-addition salt as claimed in claim 1 which is a hydrochloride, hydrobromide, phosphate, sulphate, oxalate, lactate, tartrate, acetate, salicylate, citrate, benzoate, β-naphthoate, adipate or 1,1-methylene-bis-(2-hydroxy-3-naphthoate), or a salt derived from a sulphonated polystyrene resin.

Claim 13

An alkanolamine as claimed in claim 1 wherein Y is a direct link or alkylene or alkyleneoxy each of up to 6 carbon atoms.

Claim 14

An alkanolamine as claimed in claim 1 selected from 1-(2-cyanophenoxy)-3-β-propionamidoethyl amino-2-propanol and the acid-addition salts thereof.

Claim 15

An alkanolamine as claimed in claim 1 selected from the group consisting of 1-(3,4-dihydroxyphenoxy)-3-β-isobutyramidoethylamino-2-propanol and the acid-addition salts thereof.