Abstract:
A family of compounds capable of inhibiting the activity of prenyl transferases. The compounds are covered by five formulas (I), (II), (III), (IV), (V). Each of the R groups is defined in the disclosure.
Abstract:
The invention provides excellent antioxidants. Compounds of the general formula (1) or pharmacologically acceptable salts thereof are excellent in antioxidant activity and therefore useful as remedies for cataract and ischemic heart diseases due to oxidative stress, wherein R1, R2 and R3 are each independently hydrogen or lower alkyl; R4 is a carboxylic acid group or an ester or amide thereof; m is 0 or 1; and n is 1 or 2.
Abstract:
Methods for the synthesis of various novel substituted dipeptide derived nitrogen-containing heterocyclic compounds (I) and their pharmaceutically acceptable salt derivatives are provided. The compounds of the invention are claimed and are useful as medicaments for the treatment or prevention of disease in a mammal, for example a human. In particular the compounds are useful as immuno therapeutics and anti -microbial drugs or vaccines. These heterocyclic derivatives can be used as an active agent in a pharmaceutical, as well as a diagnostic utility.
Abstract:
The present invention provides new heterocyclic compounds that have a relatively flexible backbone. These compounds may be used to produce new combinatorial libraries that will permit screening for lead compounds and selection of drug candidates for a variety of uses in human medicine, veterinary medicine and in agriculture. The members of libraries provided by the invention differ from each other (in addition to the conventional chemical and positional diversity attained by the different substituents on the ring) in two novel aspects : (a) the ring size; and (b) the chirality of the substituents on the ring. This leads to conformational diversity and flexibility that allows the selection of the most active compound, not only on the basis of the nature and proper arrangement of the substituents attained by the known chemical and positional diversity, but also based on the ability to undergo conformational complementarity attained by the conformational diversity. The present invention further provides combinatorial libraries comprising a plurality of the heterocyclic compounds of the present invention, and methods of screening the combinatorial libraries for compounds having a beneficial biological effect. The screening methods provided herein may be automated and/or computerized, for example by using a computer program to virtually screen the combinatorial libraries in order to identify compounds that are predicted to adopt bioactive conformations that will give rise to the desired biological effect.
Abstract:
Изобретение относится к новым азагетероциклам, представляющим интерес как потенциальные физиологически активные вещества ( агонисты, антагонисты и модуляторы рецепторов, ингибиторы ферментов, онколитики, антибактериальные и противопаразитарные агенты и т.д. ), к комбинаторной и фокусированной библиотекам, включающим новые азагетероциклы, фармацевтической композиции, содержащей в качестве активной субстанции новые азагетероциклы, к способам их получения и применения. Предложены новые азагетероциклы общей формулы 1, где: W представляет собой азогетероцикл, включающий 6-12 атомов, необязательно аннелированный, по крайней мере, с одним С 5 – С 7 карбоциклом и/или гетероциклом, включающий, по крайней мере, один из гетероатомов, выбранный из группы О, S или N; R 1 a представляет собой заместитель аминогруппы, исключая водород, предпочтительно, C 1 – C 6 алкил, арил или гетероциклил, включающий, по крайней мере, один из гетероатомов, выбранных из группы О, S или N; R b представляют собой карбамоильную группу – С (О) NHR a , в которой R a представляет собой заместитель аминогруппы, исключая водород; R с представляют собой заместитель циклической системы, предпочтительно, C 1 – C 6 алкил, арил или гетероциклил, включающий, по крайней мере, один из гетероатомов, выбранных из группы О, S, или N, или R b и R с вместе образуют амино – циано – метиленовую группу [( = С(NH 2 )CN].
Abstract:
Cyclic disulfide derivatives represented by general formula (I), wherein R , R and R represent each H or alkyl; m is 0 or 1, and n is 1 or 2. Because of having effects of inhibiting neovascularization, regulating vascular permeability and preventing vascular endothelial growth factor from releasing, these compounds are expected as being useful as remedies for diseases in which neovascularization, vascular permeability or vascular endothelial growth factor participates, in particular, retinal diseases such as diabetic retinopathy, macular degeneration, retinal venous obliteration and retinal arterial obliteration, neovascularization glaucoma and tumors such as anginoma.
Abstract:
There are disclosed certain novel compounds identified as benzo-fused lactams which promote the release of growth hormone in humans and animals. This property can be utilized to promote the growth of food animals to render the production of edible meat products more efficient, and in humans, to increase the stature of those afflicted with a lack of a normal secretion of natural growth hormone. Growth promoting compositions containing such benzo-fused lactams as the active ingredient thereof are also disclosed.
Abstract:
Compounds of formula (1) are described where R represents a -CONHOR [where R is a hydrogen atom or an acyl group], carboxyl (-CO2H), esterified carboxyl, -SR or -P(O)(X R )- -X R group, where X and X , which may be the same or different, is each an oxygen or sulphur atom and R and R , which may be the same or different each represents a hydrogen atom or an optionally substituted alkyl, aryl, or aralkyl group; R represents a hydrogen atom or an optionally substituted alkyl, alkenyl, aryl, aralkyl, heteroaralkyl or heteroarylthioalkyl group, R represents a group -Z (CH2)mZ -Ar wherein Ar is an aryl or heteroaryl group, Z and Z , which may be the same or different, is each a bond or a heteroatom, and m is zero or an integer 1 to 6 with the proviso that when m is zero, Z is a bond, and Z is a heteroatom; R represents a hydrogen atom or an alkyl group; R represents a hydrogen atom or an alkyl group; R represents a group -C(R )(R )Het-R , wherein R and R which may be the same or different is each an optionally substituted alkyl or alkenyl group optionally interrupted by one or more -O- or -S- atoms or -N(R )- groups (where R is a hydrogen atom or an optionally substituted alkyl group), or an optionally substituted cycloalkyl, cycloalkenyl, aryl or heteroaryl group, or R and R together with the carbon atom to which they are attached are linked together to form an optionally substituted cycloalkyl or cycloalkenyl group, Het is -O-, -S(O)p- [where p is zero, or an integer 1 or 2] or -N(R )-, and R is a hydrogen atom or an aliphatic, cycloaliphatic, heterocycloaliphatic, aromatic, or heteroaromatic group; X is an amino (-NH2), substituted amino, hydroxyl or substituted hydroxyl group, or is linked to the atom of group Het in R to form a chain -X-Alk-R - where X is -N(R )-, Alk is an optionally substituted alkylene chain and R is -Het-C(R )(R )-; and the salts, solvates, hydrates and prodrugs thereof. The compounds are orally active metalloproteinase inhibitors and in particular have a selective gelatinase action, have a long duration of action, and may be of use in the prophylaxis or treatment of diseases or disorders in which stromelysis, collagenase or gelatinase have a role, for example in the treatment of cancer to control the development of tumor metastases.
Abstract:
The invention relates to the non-therapeutic cosmetic use of at least one compound of formula (I) as defined below, as an agent for bleaching, lightening and/or depigmenting keratin materials, especially the skin. The invention also relates to a non-therapeutic cosmetic process for depigmenting, lightening and/or bleaching keratin materials, especially the skin, using these compounds (I).
Abstract:
The invention relates to the field of the organic chemistry and, in particular to a method for preparing a compound of formula (I) or (II), and/or a mixture of isomers thereof, wherein R is -Alk, -AlkN(Alk) 2 , -AlkN(Ar) 2 , -AlkNAlkAr, -AlkOH, -AlkOAlk, -AlkOAr, -AlkSAlk, -AlkSAr, or -Ar; R 1 , R 2 , R 3 , and R 4 are independently -Alk, -Hal, - OH, -OAlk, -OAr, -SAlk, -SAr, or -NR 2 , wherein R is -Alk, - AlkN(Alk) 2 , -AlkN(Ar) 2 , -AlkNAlkAr, -AlkOH, -AlkOAlk, -AlkOAr, -AlkSAlk, -AlkSAr, or -Ar, wherein Alk is C 1 - C 16 alkyl, C 3 -C 16 cycloalkyl, C 2 -C 16 alkenyl, C 2 -C 16 alkynyl; Ar is phenyl; Hal is halogen selected from -Cl, -Br, and -I,