摘要:
An aminothiazolyl- or aminothiadiazolyl-cephalosporin derivative represented by the following general formula (I) which has a condensed-ring thio group as a 3-positioned substituent group that contains a thiazolylthio group, an oxazolylthio group or a heterocyclic ring thereof as one of the ring components. The compound according to the present invention has excellent activities to inhibit growth of various bacteria, especially Gram-positive bacteria including methicillin-resistant Staphylococcus aureus (MRSA), and therefore, the antibacterial agent comprising, as an active ingredient, the inventive compound can be used as a therapeutic drug for the treatment of various bacterial infections. ##STR1##
摘要:
The invention relates to derivatives of pyrrolidin-2-ylcarbonylheterocyclic compound of the general formula ##STR1## in which R.sup.1 represents C.sub.1-6 alkyl, C.sub.1-20 cycloalkyl, aryl or heteroaryl,R.sup.2 represents a heterocyclic compound selected from the group consisting of 2-thiazole, 2-oxazole, 2-imidazole, 2-pyrrole, 2-thiophene, 2-benzothiazole, 2-benzoxazole, 2-benzimidazole, 2-indole, 2-thiazolo[5,4-b]pyridine, 2-oxazolo[4,5-b]pyridine, 2-imidazo[4,5-b]pyridine, 5-thiazole, 2-thiazoline, 2-pyridine, 3-pyridine, 5-pyrimidine, 2-pyrazine, 2-triazole or 2-pyrazole wherein the heterocyclic compound may be unsubstituted or substituted independently with R.sup.4 or R.sup.5 wherein R.sup.4 and R.sup.5 are H, C.sub.1-5 alkyl, aryl or R.sup.4 and R.sup.5 may be ortho substituents on the heterocyclic compounds and connected to form an aryl or heteroaryl ring,A represents a cyclic amino acid, X is oxygen atom, thiomethlene or methylene residue, m is an integer from 1 to 5, to a process for the preparation thereof, to composition containing them, and to the use thereof.
摘要:
2,3-disubstituted-4-hydroxyquinoline derivatives of the general formula (I): ##STR1## [wherein R.sup.1 represents a hydrogen atom or R.sup.3 CO-- (wherein R.sup.3 is a lower alkyl group); R.sup.2 represents a hydrogen atom, --CH.sub.3 or --C.sub.2 H.sub.5 ; A represents ##STR2## and W represents a hydrogen atom, or 1- 4 halogen atoms or alkyl groups which are substituted at the nucleus and may be the same or different] have a strong antagonistic action on leukotriene D.sub.4.
摘要翻译:(I)的2,3-二取代-4-羟基喹啉衍生物:其中R1表示氢原子或R3CO-(其中R3是低级烷基); R 2表示氢原子,-CH 3或-C 2 H 5; A表示,W表示氢原子或1-4个卤原子或在核上被取代且可相同或不同的烷基对白三烯D4具有强拮抗作用。
摘要:
Compounds of the general formula (I): ##STR1## and pharmaceutically acceptable salts thereof, in whichA, B, C and D each represent --CH.dbd. or --N.dbd., with the proviso that at least one of them is --N.dbd.;X represents --NH--, --O-- or --S--;Y represents --(CH.sub.2).sub.p -- wherein p is an integer from 0 to 4, --C(CH.sub.3).sub.2 --, --CH.sub.2 CH.dbd.CH--, --CH.sub.2 CO--, --CF.sub.2 -- or --CH.sub.2 COCH.sub.2 --;R.sup.1 represents a hydrogen atom, a C.sub.1-4 alkyl group, a halogen atom or a C.sub.1-4 alkoxy group;R.sup.2 represnts a hydrogen atom, a hydroxyl group, a saturated or unsaturated C.sub.1-6 alkyl group, a C.sub.1-6 alkoxy group, a carboxyl group, a saturated or unsaturated C.sub.1-12 alkoxycarbonyl group which may be optionally substituted, a cycloalkoxycarbonyl group, a saturated or unsaturated five- or six-memebered heterocyclic group containing at least one nitrogen atom optionally with one or more nitrogen and/or oxygen atoms, which may be optionally condensed and/or substituted, --CONR.sup.3 R.sup.4, --NR.sup.3 R.sup.4, --OCOR.sup.3 or --NHCONHR.sup.3 wherein R.sup.3 and R.sup.4, which may be the same or different, represent a C.sub.1-6 alkyl group which may be optionally substituted or a cycloalkyl group, andm and n each represent an integrer from 0 to 2.The compounds are useful in treating ulcers.
摘要:
Cephalosporin compounds having 2-(2-aminothiazol-4-yl)-2{(1S)-carboxyethoxyimino}acetyl group on the side chain at the 7-position thereof and 1-ethylpyridinium-4-ylthiomethyl group on the side chain at the 3-position thereof or non-toxic salts thereof are excellent antibacterial agents for mammals including human. The cephalosporin derivatives have low toxicity.
摘要:
The subject invention includes a 1-oxa-1-dethia-cephalosporin compound represented by the general formula (1) ##STR1## wherein R.sup.1 is a group of the formula: ##STR2## where R.sup.5 is a methyl group, an ethyl group, a carboxymethyl group or a 2-carboxy isopropyl group, or R.sup.1 is a group of the formula: ##STR3## where R.sup.6 is a hydrogen atom, a 4-ethyl-2,3-dioxopiperazine-1-yl group, a 3,4-dihydroxy phenyl group or a 5- and 6-membered heterocyclic radical having 2 ring nitrogens as the sole hetero substituent in the ring and having at least one hetero group on the carbon adjacent to the ring nitrogens.
摘要:
Disclosed is a process for preparing antibiotic 1-oxadethiacephalosporins via diazo-species I: ##STR1## wherein: A is acyl; R.sup.1 is H or OCH.sub.3 ; and R.sup.2 is a protecting group.
摘要:
A display device including: a display cell that includes a first substrate and a second substrate that are arranged to be opposing, includes a wiring region that is wider than the first substrate on the second substrate, and includes an electrode in the wiring region; a wiring substrate in which at least a portion is arranged to be opposing the wiring region and which is electrically connected to the electrode; a front panel that is provided on a front surface of the first substrate; and a desiccating bonding agent that fixes the front panel to the first substrate while covering from at least a portion of a side surface of the first substrate to a connection portion between the electrode and the wiring substrate.
摘要:
A liquid crystal display device capable of obtaining good display characteristics and good response characteristics is provided. A liquid crystal material being a paraelectric material, the liquid crystal material includes: a liquid crystal molecule exhibiting a nematic liquid crystal phase at room temperature and including one or more cyclic structures; and a bent-shaped molecule including cyclic structures which are large in number compared to the cyclic structures included in the liquid crystal molecule.
摘要:
Scanning signal lines (41) and data signal lines (47) are arranged so as to cross each other, and common signal lines (42) and the scanning signal lines (41) are arranged to be parallel to each other. Moreover, a polarlizer (37) provided to an upper substrate (36) and a polarlizer (38) provided to a lower substrate (30) are arranged such that absorption axial directions (37a) and (38a) cross at an angle that is orthogonal. Moreover, the absorption axial directions (37a) and (38a) are arranged so as to be perpendicular to or parallel to directions in which the data signal lines (47), the scanning signal lines (41), and the common signal lines (42) are extended, respectively. This realizes an improved response speed and an increased transmissivity.