摘要:
There are described new compounds of formula (1) ##STR1## wherein R.sup.1 represents an acyl group;X.sup.1 represents phenylalanine or p-methoxyphenylalanine bonded N-terminally to R.sup.1 and C-terminally to X.sup.2 ;X.sup.2 represents histidine or N-methylhistidine bonded N-terminally to X.sup.1 and C-terminally to the group --NH--;R.sup.2 represents a C.sub.4-6 cycloalkyl group;R.sup.3 represents a group CHR.sup.6 R.sup.7 is a hydrogen atom and R.sup.7 is a phenyl group, or R.sup.6 is a methyl group and R.sup.7 is a hydrogen atom or a methyl or ethyl group;X.sup.3 represents a C.sub.2-6 alkylene chain optionally substituted by one or more C.sub.1-4 alkyl groups;R.sup.4 and R.sup.5, which may be the same or different, each independently represent a hydrogen atom or a C.sub.1-4 alkyl group, or NR.sup.4 R.sup.5 may form a 5- or 6- membered polymethylenimine ring;and salts and solvates thereof.The new compounds have been found to exhibit activity as renin inhibitors, combining good duration of action with significant oral potency.Compositions containing the compounds of formula (1) and processes for preparing the compounds are also described.
摘要:
There are described new compounds of formula (1) ##STR1## wherein R.sup.1 represents an acyl group;X.sup.1 represents phenylalanine or p-methoxyphenylalanine bonded N-terminally to R.sup.1 and C-terminally to X.sup.2 ;X.sup.2 represents histidine or N-methylhistidine bonded N-terminally to X.sup.1 and C-terminally to the group --NH--;R.sup.2 represents a C.sub.4-6 cycloalkyl group;R.sup.3 represents a group CHR.sup.6 R.sup.7 (where R.sup.6 is a hydrogen atom or a hydroxyl group and R.sup.7 is a pyridinyl ring);X.sup.3 represents a C.sub.2-6 alkylene chain optionally substituted by one or more C.sub.1-4 alkyl groups;R.sup.4, and R.sup.5, which may be the same or different, each independently represent a hydrogen atom or a C.sub.1-4 alkyl group, or NR.sup.4 R.sup.5 may form a 5- or 6- membered polymethylenimine ring;and salts and solvates thereof.The new compounds have been found to exhibit activity as renin inhibitors, combining good duration of action with significant oral potency.Compositions containing the compounds of formula (1) and processes for preparing the compounds are also described.
摘要:
Antibiotic compounds of the general formula ##STR1## [wherein R is a phenyl, thienyl or furyl group; R.sup.a and R.sup.b, which may be the same or different, are each selected from hydrogen, C.sub.1-4 alkyl, C.sub.2-4 alkenyl, C.sub.3-7 cycloalkyl, phenyl, naphthyl, thienyl, furyl, carboxy, C.sub.2-5 alkoxycarbonyl and cyano, or R.sup.a and R.sup.b together wth the carbon atom to which they are attached form a C.sub.3-7 cycloalkylidene or cycloalkenylidene group; R.sup.c and R.sup.d, which may be the same or different, each represents a hydrogen atom or a substituting group e.g. an alkyl group or substituted alkyl group; or R.sup.c and R.sup.d together with the nitrogen atom to which they are attached form a saturated or unsaturated heterocyclic ring which contains 5-7 ring members and which may contain additional hetero atoms, and may be substituted by lower alkyl; R.sup.e represents hydrogen or C.sub.1-4 alkyl; m and n are each 0 or 1 such that the sum of m and n is 0 or 1 and Y is selected from various oxygen and sulphur nucleophiles] and non-toxic derivatives thereof.
摘要翻译:通式(I)的抗生素化合物[其中R是苯基,噻吩基或呋喃基; R a和R b可以相同或不同,各自选自氢,C 1-4烷基,C 2-4烯基,C 3-7环烷基,苯基,萘基,噻吩基,呋喃基,羧基,C 2-5烷氧基羰基和氰基, 或者R a和R b一起与它们所连接的碳原子一起形成C 3-7亚环烷基或亚环烯基; R c和R d可以相同或不同,表示氢原子或取代基团。 烷基或取代的烷基; 或Rc和Rd与它们所连接的氮原子一起形成饱和或不饱和的杂环,其含有5-7个环成员并且可以含有另外的杂原子,并且可以被低级烷基取代; Re表示氢或C 1-4烷基; m和n各自为0或1,使得m和n的和为0或1,Y选自各种氧和硫亲核试剂]及其无毒的衍生物。
摘要:
This invention relates to heterocyclic compounds which are inhibitors of the enzyme aromatase, to processes for their preparation, to pharmaceutical compositions containing them and to their use in medicine.Particular compounds of the invention are compounds of formula (I) ##STR1## wherein R.sup.1 represents a cyano or nitro group; R.sup.2 represents hydrogen or one or more halogen atoms;R.sup.3 represents a C.sub.1-6 alkyl group and R.sup.4 represents hydrogen or aC.sub.1-6 alkyl group or R.sup.3 and R.sup.4 together represent a C.sub.3-6 cycloalkyl group; andR.sup.5 represents hydrogen or one or more halogen atoms or C.sub.1-6 alkoxy groups and pharmaceutically acceptable salts and solvates thereof.
摘要:
Compounds of general formula I ##STR1## (wherein R represents NH.sub.2 -- or an acylated or silylated amino group;R.sup.2 represents a hydrogen, halogen, alkyl, aryl, carboxyl or lower alkoxycarbonyl group;R.sup.3 is hydrogen or a carboxyl blocking group;B is >Sor>S.fwdarw.O (.alpha.- or .beta.-); and the dotted line represents .DELTA..sup.2 or .DELTA..sup.3 unsaturation) and salts, solvates and esters thereof are described.Compounds where R.sup.3 is hydrogen, the dotted line represents .DELTA..sup.3 unsaturation and R is a group of formula ##STR2## (where R.sup.a is an optionally substituted heterocyclic aryl group having one or more hetero atoms selected from S, N and O in the ring, R.sup.b is an optionally substituted aryl group, R.sup.c is hydrogen, acyl, alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl, aryl or aralkyl, R.sup.d is as defined for R.sup.a or is an optionally substituted group and X is amino, hydroxyl, acylated hydroxyl, carboxyl or esterified carboxyl)and especially the compounds in which B is >S, have valuable antibiotic activities.Compounds in which the --CH.dbd.CH--C.tbd.C--R.sup.2 group is in the trans configuration have been found to have good oral absorption.The remaining compounds of formula (I) are valuable as intermediates in processes for the preparation of the above active antibiotics, which processes are also described.
摘要翻译:通式I的化合物(I)(其中R表示NH 2 - 或酰化或甲硅烷基化的氨基; R 2表示氢,卤素,烷基,芳基,羧基或低级烷氧基羰基; R 3是氢或羧基封端基 ; B是> Sor> S-> O(α-或β-);虚线代表DELTA 2或DELTA 3不饱和键)及其盐,溶剂合物和酯。 其中R 3为氢的化合物,虚线表示DELTA 3不饱和度,R为式R a R 2 CONH(R a)的基团,其中R a为具有一个或多个选自S,N和O的杂原子的任选取代的杂环芳基 在环中,R b是任选取代的芳基,R c是氢,酰基,烷基,烯基,炔基,环烷基,环烷基烷基,芳基或芳烷基,Rd如对Ra定义或是任选取代的基团,X是氨基,羟基 ,酰化羟基,羧基或酯化羧基),特别是其中B> S的化合物具有有价值的抗生素活性。 已经发现其中-CH = CH-C 3 D C-R 2基团处于反式构型的化合物具有良好的口服吸收。 剩余的式(I)化合物在制备上述活性抗生素的方法中作为中间体是有价值的,该方法也被描述。
摘要:
Compounds of general formula (I) ##STR1## (where R.sup.1 is a carboxyl group, a group COO.sup..crclbar. or a blocked carboxyl group;R.sup.2 is an amino or protected amino group; andR is hydrogen or a group of the formula CH.sub.2 X, where X represents a halogen atom, a hydroxyl group, an acetoxy group; a group of the formula O.CO.NHR.sup.3, where R.sup.3 is hydrogen, a C.sub.1-4 alkyl group optionally substituted by 1 to 3 halogen atoms or an N-protecting group; a group of the formula OR.sup.4, where R.sup.4 is a C.sub.1-4 alkyl group optionally substituted by halogen or a C.sub.1-4 alkoxy group; or a pyridinium, 3-carbamoyl-pyridinium or 4-carbamoyl-pyridinium group;B is --S-- or --SO-- (.alpha.- or .beta.-); and the dotted line bridging the 2-, 3- and 4- positions indicates that the compound is a ceph-2-em or ceph-3-em compound) and salts thereof, the compounds of formula (I) being associated with an anion when X represents a pyridinium, 3-carbamoylpyridinium group or a 4-carbamoylpyridinium group and R.sup.1 is other than COO.sup..crclbar.) are disclosed.Processes for their preparation and pharmaceutical compositions containing them are also disclosed.
摘要:
Antibiotic compounds of the general formula ##STR1## [wherein R is a phenyl, thienyl or furyl group; R.sup.a and R.sup.b, which may be the same or different, are each selected from hydrogen, C.sub.1-4 alkyl, C.sub.2-4 alkenyl C.sub.3-7 cycloalkyl, phenyl, naphthyl, thienyl, furyl, carboxy, C.sub.2-5 alkoxycarbonyl and cyano, or R.sup.a and R.sup.b together with the carbon atom to which they are attached from a C.sub.3-7 cycloalkylidene or cycloalkenylidene group; R.sup.c is hydrogen or lower alkyl; R.sup.d is hydroxy, lower alkoxy, aralkoxy or aryloxy; m and n are each 0 or 1 such that the sum of m and n is 0 or 1; and P is selected from a hydrogen atom, a halogen atom and various organic groups] and non-toxic derivatives thereof.
摘要翻译:通式(I)的抗生素化合物[其中R是苯基,噻吩基或呋喃基; R a和R b可以相同或不同,各自选自氢,C 1-4烷基,C 2-4烯基C 3-7环烷基,苯基,萘基,噻吩基,呋喃基,羧基,C 2-5烷氧基羰基和氰基,或 R a和R b与它们所连接的碳原子一起为C3-7亚环烷基或环亚烯基; Rc是氢或低级烷基; Rd为羟基,低级烷氧基,芳烷氧基或芳氧基; m和n各自为0或1,使得m和n的和为0或1; 和P选自氢原子,卤素原子和各种有机基团]及其无毒的衍生物。
摘要:
Cephalosporin antibiotics in which the 7.beta.-acylamido group has the structure ##STR1## (WHERE R is phenyl, thienyl or furyl; R.sup.a and R.sup.b are each selected from hydrogen, C.sub.1-4 alkyl, C.sub.2-4 alkenyl, C.sub.3-7 cycloalkyl, phenyl, naphthyl, thienyl, furyl, carboxy, C.sub.2-5 alkoxycarbonyl, aminocarbonyl, N-substituted aminocarbonyl and cyano, or R.sup.a and R.sup.b together with the carbon atom to which they are attached form a C.sub.3-7 cycloalkylidene or cycloalkenylidene group; R.sup.c is hydrogen or C.sub.1-4 alkyl; and m and n are each 0 or 1 such that the sum of m and n is 0 or 1) exhibit broad spectrum antibiotic activity characterized by particularly high activity against gram negative microorganisms, including those which produce .beta.-lactamases. The compounds, which are syn isomers or exist as mixtures of syn and anti isomers containing at least 90% of the syn isomer, have particularly good activity against Proteus organisms including indole positive strains and, especially when both R.sup.a and R.sup.b are other than hydrogen, against Pseudomonas organisms.
摘要翻译:头孢菌素抗生素,其中7β-酰胺基具有结构(其中R是苯基,噻吩基或呋喃基; R a和R b各自选自氢,C 1-4烷基,C 2-4链烯基,C 3-7环烷基, 苯基,萘基,噻吩基,呋喃基,羧基,C 2-5烷氧基羰基,氨基羰基,N-取代的氨基羰基和氰基,或者R a和R b与它们所连接的碳原子一起形成C 3-7亚环烷基或亚环烯基; R c是 氢或C 1-4烷基; m和n各自为0或1,使得m和n的和为0或1)表现出广谱抗生素活性,其特征在于对革兰氏阴性微生物特别高的活性,包括产生β- 内酰胺酶 作为syn异构体的化合物或含有至少90%的顺式异构体的合成和反异构体的混合物的化合物对包括吲哚阳性菌株在内的变形杆菌生物具有特别好的活性,特别是当Ra和Rb都不是氢时, 针对假单胞菌生物。