摘要:
The present invention relates to fluorescent dyes based on acridine derivatives and use of such dyes, for example, in biochemical and/or cell based assays. A preferred feature of some of the dyes described is their long fluorescence lifetimes and their use to label biological molecules.
摘要:
The present invention relates to fluorescent dyes based on acridine derivatives and use of such dyes, for example, in biochemical and/or cell based assays. A preferred feature of some of the dyes described is their long fluorescence lifetimes and their use to label biological molecules.
摘要:
Disclosed is a tag for purification of peptides. The tag structure facilitates the easy cleavage of a bond formed between the tag molecule and a peptide to which it is bound under conditions which minimize, indeed preferably prevent, damage to the peptide. The tag molecules of the invention may be used to separate and/or purify a peptide from a mixture of peptides and/or other components.
摘要:
A method for the preparation and purification of compounds using a novel support, a tetrabenzo [a, c, g, i]-fluorene group (Tbf) comprising reacting a building block (A) containing a Tbf group (Tbf-A), with a second building block (B), to afford an intermediate compound (Tbg-A-B) followed by purifying the intermediate compound by adsorption on a carbon support, removing the intermediate compound from the support with a solvent and repeating the previous reactions using the required number of building blocks to synthesize the compounds followed by removal of the Tbf group to afford the desired compounds.
摘要:
A method for the preparation and purification of compounds using a novel support, a tetrabenzo[a,c,g,i]fluorene group (Tbf) comprising reacting a building block (A) containing a Tbf group (Tbf-A), with a second building block (B), to afford an intermediate compound (Tbg-A-B) followed by purifying the intermediate compound by adsorption on a carbon support, removing the intermediate compound from the support with a solvent and repeating the previous reactions using the required number of building blocks to synthesize the compounds followed by removal of the Tbf group to afford the desired compounds.
摘要:
The present invention relates to a peptide derivative represented by the general formula (I) or a salt thereof: Z-(CH2)n—CO—NH-Leu-Ile-Gly-AA1-AA2-CO—R (I) wherein Z represents an aryl group which may or may not have a substituent or a heteroaryl group which may or may not have a substituent; n represents 0, 1 or 2: AA1-AA2 represents Lys-Val or Arg-Leu; and R represents —OH or —NH2, and relates to a pharmaceutical composition comprising a peptide derivative represented by the general formula (I) or a salt thereof, and a pharmaceutically acceptable carrier thereof. The peptide derivative is useful as a prophylactic and therapeutic agent of dysfunction of masticatory, dysphagia, dysgeusia, ozostomia, intra-oral cavity dysphoria, intra-oral cavity infections, intra-oral cavity inflammations, dry eye, ectocornea detachment, keratitis, corneal ulcer, conjunctivitis, stomach ulcer, duodenal ulcer, gastritis, diarrhea, enteritis or Sjogren's syndrome.
摘要:
The protective group having the following formula (I):Ar--L-- (I)whereinAr represents a substantially planar, fused ring system containing at least 4 aromatic rings, andL represents a group containing at least one carbon atom which is capable of bonding to a group to be protected.
摘要:
Compounds of the formula (II): ##STR1## wherein X is halogen, hydroxyl or functionalized hydroxyl; Y is halogen, hydroxyl or alkoxy; R.sup.1 is a carboxylic acid group and ester thereof and amide derivative thereof or cyano; and R.sup.2 is hydrogen, a hydrocarbon, a heterocycle, a carboxylic acid group, a carboxylic acid ester, a carboxylic acid amide derivative, acyl, cyano, isocyano or an optionally substituted imine of the formula --CH.dbd.NZ or --N.dbd.CH.sub.2 wherein Z is hydrogen, alkyl, aryl, sulphonyl, --SR.sup.a, sulphoxide --SR.sup.a, or sulphonate --SR.sup.a wherein R.sup.a is alkyl of 1 to 6 carbon atoms or aryl, are useful as intermediates for the ultimate production of penicillins or cephalosporins.
摘要:
A process for the preparation of 3-substituted thiophenes which involves cyclization of a novel intermediate, avoids the use of previously employed expensive starting materials. The thiophenes are useful for the preparation of penicillins and cephalosporins.The process is for the preparation of a thiophene of formula (I): ##STR1## where R.sup.1 represents a carboxylic acid group, or an ester or amide thereof or a nitrile group; R.sup.2 represents a group suitable for use as an .alpha.-substituent in the side-chain of a penicillin or cephalosporin; which comprises treating a compound of formula (II): ##STR2## wherein X represents halogen or optionally functionalized hydroxyl, Y represents halogen, hydroxyl, or alkoxy; with a source of nucleophilic sulphur under basic conditions.
摘要:
The present invention relates to a peptide derivative represented by the general formula (I) or a salt thereof: Z-(CH2)n—CO—NH-Leu-Ile-Gly-AA1-AA2-CO—R (I) wherein Z represents an aryl group which may or may not have a substituent or a heteroaryl group which may or may not have a substituent; n represents 0, 1 or 2: AA1-AA2 represents Lys-Val or Arg-Leu; and R represents —OH or —NH2, and relates to a pharmaceutical composition comprising a peptide derivative represented by the general formula (I) or a salt thereof, and a pharmaceutically acceptable carrier thereof.