摘要:
The invention provides compounds of the general formula (I) ##STR1## and physiologically acceptable salts, hydrates and bioprecursors thereof, in which the substituents are defined later.The compounds show pharmacological activity as selective histamine H.sub.2 -antagonists.
摘要:
The invention provides compounds of the general formula (I) ##STR1## and physiologically acceptable salts, hydrates and bioprecursors thereof, in whichR.sub.1 and R.sub.2, which may be the same or different, each represent hydrogen, C.sub.1-10 alkyl, cycloalkyl, alkenyl, aralkyl, trifluoroalkyl, heteroaralkyl, or alkyl substituted by hydroxy, alkoxy, amino, alkylamino, dialkyamino or cycloalkyl, or R.sub.1 and R.sub.2 may together with the nitrogen atom to which they are attached form a 5 to 10 membered ring which may be saturated or may contain at least one double bond, may be unsubstituted or may be substituted by one or more C.sub.1-3 alkyl groups, or a hydroxy group and/or may contain another heteroatom selected from oxygen and sulphur;Alk represents a straight or branched alkylene chain of 1 to 6 carbon atoms and is attached to the cyclohexadiene ring at either the 4- or 5- position;X represents --CH.sub.2 or --O--;m represents 2, 3, 4 or 5 and when X is --O-- the chain (CH.sub.2).sub.m may be interrupted by an oxygen atom provided that there are at least two methylene groups between any two heteroatoms in the moiety --X(CH.sub.2).sub.m NH--;R.sub.3 represents hydrogen, alkyl, alkenyl, aralkyl, or C.sub.2-6 alkyl substituted by hydroxy or alkoxy; andR.sub.4 represents hydrogen, alkyl, alkenyl, aralkyl, hydroxyalkyl, acyloxyalkyl, alkoxyalkyl, aryloxyalkyl, aralkyloxyalkyl, aminoalkyl, alkylaminoalkyl, dialkylaminoalkyl, hydroxy or alkoxy or the group NR.sub.5 R.sub.6 whereR.sub.5 represents hydrogen, alkyl, alkyl substituted by hydroxy or C.sub.1-3 alkoxy, alkenyl, aralkyl or heteroaralkyl and R.sub.6 represents any of the groups defined for R.sub.5 or may represent the group COR.sub.7 where R.sub.7 represents hydrogen, alkyl, aryl, aralkyl, alkoxy, heteroaryl or monocyclic heteroaralkyl or R.sub.6 represents the group SO.sub.2 R.sub.8 where R.sub.8 represents alkyl or aryl, or R.sub.6 represents the group ##STR2## where Y is oxygen or sulphur and R.sub.9 represents hydrogen, alkyl, cycloalkyl, aryl or aralkyl,or R.sub.5 and R.sub.6 taken together may represent the group .dbd.CR.sub.10 R.sub.11 where R.sub.10 represents aryl or heteroaryl and R.sub.11 represents hydrogen or alkyl.The compounds show activity as selective histamine H.sub.2 -antagonists.
摘要:
Compounds of the general formula I: ##STR1## and physiologically acceptable salts thereof and N-oxides and hydrates, in which R.sub.1 and R.sub.2 which may be the same or different represent hydrogen, lower alkyl, cycloalkyl, lower alkenyl, aralkyl or lower alkyl interrupted by an oxygen atom or a group ##STR2## in which R.sub.4 represents hydrogen or lower alkyl or R.sub.1 and R.sub.2 may, together with the nitrogen atom to which they are attached, form a heterocyclic ring which may contain other heteroatoms selected from O and ##STR3## R.sub.3 is hydrogen, lower alkyl, lower alkenyl or alkoxyalkyl; X is --CH.sub.2 --, O-- or --S--;Y represents .dbd.S, .dbd.O, .dbd.NR.sub.5 or .dbd.CHR.sub.6 ;Alk denotes a straight or branched alkylene chain of 1 to 6 carbon atoms;R.sub.5 is H, nitro, cyano, lower alkyl, aryl, alkylsulphonyl, or arylsulphonyl;R.sub.6 represents nitro, arylsulphonyl or alkylsulphonyl;m is an integer from 2 to 4; andn is 1 or 2; or when X is --S-- or --CH.sub.2 --, n is zero, 1 or 2.These compounds have H.sub.2 -antagonist activity. Intermediates in the production thereof are also provided.
摘要:
The invention relates to compounds of the formula (I) ##STR1## and physiologically acceptable salts, hydrates and bioprecursors thereof, in whichR.sub.1 and R.sub.2 represent hydrogen, an aliphatic or cycloaliphatic group, or R.sub.1 and R.sub.2 together with the nitrogen atom form a 5 to 10 membered heterocyclic ring:Alk represents a straight or branched alkylene chain;Q represents furan, thiophen or benzene ring which is incorporated into the rest of the molecule;X represents --CH.sub.2 --, ##STR2## --O-- or --S-- whereR.sub.6 represents hydrogen or methyl;n represents zero, 1 or 2;m represents 2, 3 or 4;R.sub.3 represents hydrogen, a substituted or unsubstituted aliphatic or aryl group and;R.sub.4 and R.sub.5, which may be the same or different, each represent hydrogen, a substituted or unsubstituted aliphatic, aryl, or together with the nitrogen atom form a heterocyclic group.
摘要翻译:本发明涉及式(I)化合物及其生理学上可接受的盐,水合物和生物前体,其中R 1和R 2表示氢,脂族或脂环族基团,或R 1和R 2与氮原子一起 形成5至10元杂环:Alk表示直链或支链亚烷基链; Q表示呋喃,噻吩或苯环,其结合到分子的其余部分中; X表示-CH 2 - , -O-或-S-,其中R 6表示氢或甲基; n表示0,1或2; m表示2,3或4; R 3表示氢,取代或未取代的脂族或芳基, R 4和R 5可以相同或不同,各自表示氢,取代或未取代的脂族基,芳基或与氮原子一起形成杂环基。
摘要:
Compounds of the general formula I: ##STR1## and physiologically acceptable salts thereof and N-oxides and hydrates, in which R.sub.1 and R.sub.2 which may be the same or different represent hydrogen, lower alkyl, cycloalkyl, lower alkenyl, aralkyl or lower alkyl interrupted by an oxygen atom or a group ##STR2## in which R.sub.4 represents hydrogen or lower alkyl or R.sub.1 and R.sub.2 may, together with the nitrogen atom to which they are attached, form a heterocyclic ring which may contain other heteroatoms selected from O and ##STR3## R.sub.3 is hydrogen, lower alkyl, lower alkenyl or alkoxyalkyl; X is --CH.sub.2 --, O or S;Y represents .dbd. S, .dbd. O, .dbd. NR.sub.5 or .dbd. CHR.sub.6 ;Alk denotes a straight or branched alkylene chain of 1 to 6 carbon atoms;R.sub.5 is H, nitro, cyano, lower alkyl, aryl, alkylsulphonyl, or arylsulphonyl;R.sub.6 represents nitro, arylsulphonyl or alkylsulphonyl;M is an integer from 2 to 4; andN is 1 or 2; or when X .dbd. S, or --CH.sub.2 --, n is zero, 1 or 2.These compounds have H.sub.2 -antagonist activity. Intermediates in the production thereof are also provided.
摘要:
The invention relates to compounds of the general formula (I) ##STR1## and physiologically acceptable salts, hydrates and bioprecursors thereof, in whichR.sub.1 and R.sub.2, which may be the same or different, each represent hydrogen, C.sub.1-10 alkyl, cycloalkyl, alkenyl, alkynyl, aralkyl, trifluoroalkyl or alkyl substituted by hydroxy, alkoxy, amino, alkylamino, dialkylamino or cycloalkyl, or R.sub.1 and R.sub.2 may together with the nitrogen atom to which they are attached form a 5 to 10 membered alicyclic heterocyclic ring which may be saturated or may contain at least one double bond, may be unsubstituted or may be substituted by one or more C.sub.1-3 alkyl groups or a hydroxy group and/or may contain another heteroatom;Alk represents a straight or branched alkylene chain of 1 to 6 carbon atoms;Q represents a furan or thiophen ring in which incorporation into the rest of the molecule is through bonds at the 2- and 5-positions, the furan ring optionally bearing a further substituent R.sub.7 adjacent to the group R.sub.1 R.sub.2 N-Alk-, or Q represents a benzene ring in which incorporation into the rest of the molecule is through bonds at the 1- and 3- or 1- and 4- positions;R.sub.7 represents halogen or C.sub.1-4 alkyl which may be substituted by hydroxy or C.sub.1-4 alkoxy;X represents --CH.sub.2 --, ##STR2## --O-- or --S-- whereR.sub.6 represents hydrogen or methyl;n represents zero, 1 or 2;m represents 2, 3 or 4;R.sub.3 represents hydrogen, alkyl, alkenyl, aralkyl, hydroxyalkyl having at least two carbon atoms, alkoxyalkyl or aryl; andR.sub.4 and R.sub.5, which may be the same or different, each represent hydrogen, alkyl, alkyl substituted by hydroxy or C.sub.1-3 alkoxy, alkenyl, aralkyl or heteroaralkyl or R.sub.4 and R.sub.5 may together with the nitrogen atom to which they are attached form a 5 to 7-membered saturated heterocyclic ring which may contain another heteroatom, or the group ##STR3## or R.sub.4 and R.sub.5 taken together may represent the group .dbd.CR.sub.8 R.sub.9 where R.sub.8 represents aryl or heteroaryl and R.sub.9 represents hydrogen or alkyl.Preferably when X represents an oxygen atom or ##STR4## and n is zero, then Q only represents a benzene ring. The compounds of formula (I) show pharmacological activity as selective histamine H.sub.2 -antagonists.
摘要:
The invention relates to compounds of the general formula ##STR1## and physiologically acceptable salts and N-oxides, hydrates and bioprecursors thereof, in which R.sub.1 and R.sub.2 which may be the same or different each represent hydrogen, C.sub.1-8 alkyl, C.sub.4-8 cycloalkyl, C.sub.3-6 alkenyl, aralkyl with 1 to 4 carbon atoms in the alkyl residue or C.sub.1-8 alkyl interrupted by an oxygen atom or a group ##STR2## in which R.sub.5 represents hydrogen or C.sub.1-8 alkyl, or R.sub.1 and R.sub.2 may together with the nitrogen atom to which they are attached, form a saturated monocyclic 5 to 7 membered heterocyclic ring which may additionally contain the heterofunction O or ##STR3## R.sub.3 represents straight or branched chain C.sub.1-8 alkyl, alkoxyalkyl with 1 to 8 carbon atoms in each alkyl residue, C.sub.1-8 hydroxyalkyl, C.sub.1-8 alkoxycarbonyl, alkyl thioalkyl with 1 to 8 carbon atoms in each alkyl residue, halogen or aryl;R.sub.4 represents hydrogen, C.sub.1-8 alkyl, C.sub.3-6 alkenyl or alkoxyalkyl with 1 to 8 carbon atoms in each alkyl residue;X represents --O-- or --S--;Y represents .dbd.S, .dbd.O, .dbd.NR.sub.6 or .dbd.CHNO.sub.2 where R.sub.6 represents hydrogen, nitro, cyano, C.sub.1-8 alkyl, aryl, C.sub.1-8 alkylsulphonyl or arylsulphonyl;m represents an integer from 2 to 4 inclusive; andn represents an integer which is 1 or 2, or additionally when X is --S-- n may also be zero.The invention also relates to processes for the production of such compounds, pharmaceutical compositions containing them and certain novel intermediates used in their production, i.e. amines of the formula ##STR4## and alcohols of the formula ##STR5## The compounds of formula (I) show pharmacological activity as selective histamine H.sub.2 -antagonists.
摘要:
The invention provides compounds of the general formula ##STR1## and physiologically acceptable salts and hydrates thereof, in which one of R.sub.1 and R.sub.2 represents hydrogen, halogen or a C.sub.1-4 alkyl group which may be optionally substituted by hydroxy or C.sub.1-4 alkoxy, and the other represents the group R.sub.4 R.sub.5 NAlk-- in which Alk represents a straight or branched alkylene chain of 1 to 6 carbon atoms;R.sub.3, which may be in either the 2 or 3-position, represents the ##STR2## where X represents --CH.sub.2 --, --O-- or --S--; n represents zero, 1 or 2;m represents 2, 3 or 4; andR.sub.7 represents hydrogen, alkyl, alkenyl, aralkyl, or C.sub.2-6 alkyl substituted by hydroxy or alkoxy; andR.sub.8 represents hydrogen, alkyl, alkenyl, aralkyl, hydroxyalkyl, acyloxyalkyl, alkoxyalkyl, aryloxyalkyl, aralkyloxyalkyl, aminoalkyl, alkylaminoalkyl, dialkylaminoalkyl, hydroxy or alkoxy, or the group NR.sub.10 R.sub.11 ; with the provisos thatwhere R.sub.2 represents the group R.sub.4 R.sub.5 Nalk then R.sub.3 is in the 2-position;where R.sub.2 represents hydrogen then R.sub.3 is in the 3-position; andwhere R.sub.2 represents halogen or C.sub.1-4 alkyl optionally substituted by hydroxy or C.sub.1-4 alkoxy, and R.sub.3 is in the 2-position, then R.sub.8 cannot represent amino C.sub.1-6 alkyl, C.sub.1-6 alkylamino C.sub.1-6 alkyl, di-C.sub.1-6 alkylamino C.sub.1-6 alkyl or a group NR.sub.10 R.sub.11.The compounds of formula (I) show pharmacological activity as selective histamine H.sub.2 -antagonists.
摘要:
Compounds of the formula (I) ##STR1## in which R.sub.1 and R.sub.2 each may represent hydrogen, alkyl, cycloalkyl, alkenyl, alkynyl, aralkyl, or alkyl, substituted by hydroxy, C.sub.1-3 alkoxy, amino, C.sub.1-3 alkylamino or di-C.sub.1-3 alkylamino or R.sub.1 and R.sub.2 together with the nitrogen atom to which they are attached form an alicyclic heterocyclic ring which may be unsubstituted or may be substituted by one or more C.sub.1-3 alkyl groups or a hydroxy group and/or may contain another heteroatom are described.Alk is a straight lower alkylene chain,Q is a furan or thiophen ring, the furan ring optionally bearing a further substituent R.sub.5 adjacent to the group R.sub.1 R.sub.2 NAlk-- or Q represents a benzene ring.R.sub.5 represents halogen or C.sub.1-3 alkyl which may be substituted by a hydroxy or C.sub.1-3 alkoxy group;X represents --CH.sub.2 --, --O-- or --S--;n represents zero or 1;m represents 2, 3 or 4;Y represents .dbd.O or .dbd.S;R.sub.3 represents hydrogen in which case R.sub.4 represents methyl or R.sub.3 represents --(CH.sub.2).sub.p V(CH.sub.2).sub.q Ar, phenyl, or alkyl in which case R.sub.4 represents hydrogen;V represents --CH.sub.2 --, --O--, or --S--;p represents zero, 1, 2 or 3;q represents zero, 1, 2 or 3;the sum of p+q being 3 or less;Ar represents an aromatic carbocyclic or heterocyclic ring being optionally substituted by at least one C.sub.1-3 alkyl, C.sub.1-3 alkoxy C.sub.1-3 alkyl, hydroxy, C.sub.1-3 alkoxy, methylenedioxy, halogen, trifluoromethyl or di-C.sub.1-3 alkylamino group;except that when n is zero and X is oxygen then Q represents a benzene or thiophen ring. The compounds of formula (I) have pharmacological activity as selective histamine H.sub.2 -antagonists.
摘要:
The invention relates to compounds of the general formula (I) ##STR1## and physiologically acceptable salts, hydrates and bioprecursors thereof, in whichR.sub.1 and R.sub.2, which may be the same of different, each represent hydrogen, C.sub.1 alkyl, cycloalkyl, alkenyl, alkynyl, aralkyl, trifluoroalkyl, or alkyl substituted by hydroxy, alkoxy, amino alkylamino dialkylamino or cycloalkyl or R.sub.1 and R.sub.2 may together with the nitrogen atom to which they are attached form a 5 to 10 membered ring which may be saturated or may contain at least one double bond, may be unsubstituted or may be substituted by one or more C.sub.1-3 alkyl groups or a hydroxy group and/or may contain another heteroatom which is oxygen or sulphur;Alk represents a straight or branched alkylene chain of 1 to 6 carbon atoms,Q represents a furan or thiophene ring in which incorporation into the rest of the molecule is through bonds at the 2- and 5- positions, the furan ring optionally bearing a further substituent R.sub.6 adjacent to the group R.sub.1 R.sub.2 N-Alk, or Q represents a benzene ring in which incorporation into the rest of the molecule is through bonds at the 1- and 3- or 1- and 4- positions;R.sub.6 represents halogen or C.sub.1-4 alkyl which may be substituted by hydroxy or C.sub.1-4 alkoxy;x represents --CH.sub.2 --, --O--, --S--or ##STR2## where R.sub.5 represents hydrogen or methyl; n represents zero, 1 or 2;m represents 2, 3 or 4;R.sub.3 represents hydrogen, alkyl, alkenyl, aralkyl, hydroxyalkyl with at least two carbon atoms, alkoxyalkyl, or aryl, andR.sub.4 represents hydrogen, alkyl, alkenyl or aralkyl and R.sub.7 represents the group COR.sub.8 where R.sub.8 represents hydrogen, alkyl, aryl, aralkyl, alkoxy, heteroaryl or monocyclic heteroarylalkyl or R.sub.7 represents the group SO.sub.2 R.sub.9 where R.sub.9 represents alkyl or aryl, or R.sub.7 represents the group ##STR3## where Y is oxygen or sulphur and R.sub.10 represents hydrogen, alkyl, cycloalkyl, aryl or aralkyl.The compounds of formula (I) show pharmacological activity as selective histamine H.sub.2 - antagonists.