Abstract In the present work we investigated the conformations of some N -mono-substituted propanamides of general formula CH 3 CH 2 CONHR, wherein R is chosen from n -(C 1 C 9 )alkyl, cyclo(C 3 C 6 )alkyl, some branched (C 3 C 6 )alkyl or phenyl. The amides were synthesised by the well known Schotten-Baumann reaction—acylation of the corresponding amines with propionyl chloride. On the basis of
The disclosure relates to anti-cancer compounds which are anti-cancer PARP inhibitors of formula Al, A2, A3 or A4 conjugated by a linker to a steroid, whereby the steroid targets the conjugate to the nucleus, as well as to methods for their preparation and use. (I)
Cuticular Chemistry of the Queensland Fruit Fly Bactrocera tryoni (Froggatt)
作者:Soo J. Park、Gunjan Pandey、Cynthia Castro-Vargas、John G. Oakeshott、Phillip W. Taylor、Vivian Mendez
DOI:10.3390/molecules25184185
日期:——
Normal and methyl-branched alkanes were qualitatively the same in all age and sex groups but some of the alkanes differed in amounts (as estimated from internal standard-normalized peak areas) between mature males and females, as well as between mature and immature flies. This study provides essential foundations for studies investigating the functions of cuticular chemistry in this economically important
昆虫外骨骼的表皮层含有多种化合物,具有重要的生物学功能,包括通过防止水分流失来维持体内平衡、免受伤害、病原体和杀虫剂以及通讯。Bactrocera tryoni (Froggatt) 是澳大利亚水果生产中最具破坏性的害虫,但还没有关于该物种表皮化学的公开报道。我们在这里提供了 B. tryoni 表皮化学的全面描述。我们使用气相色谱-质谱法来鉴定和表征从自然感染水果中的幼虫饲养的 B. tryoni 成虫的己烷提取物中的化合物。发现的化合物包括螺缩醛、脂肪族酰胺、饱和/不饱和和甲基支链 C12 至 C20 链酯以及 C29 至 C33 正链烷烃和甲基支链烷烃。发现螺缩醛和酯是成熟雌性特有的,而酰胺在两性中都有发现。正常和甲基支链烷烃在所有年龄和性别组中在性质上相同,但一些烷烃在成熟雄性和雌性之间以及成熟和未成熟果蝇之间的数量(根据内部标准标准化峰面积估计)不同。这项研究为调查这种具有重要经
[EN] LIPID CONJUGATES FOR THE DELIVERY OF THERAPEUTIC AGENTS<br/>[FR] CONJUGUÉS LIPIDIQUES POUR L'ADMINISTRATION D'AGENTS THÉRAPEUTIQUES
申请人:ARROWHEAD PHARMACEUTICALS INC
公开号:WO2022056273A1
公开(公告)日:2022-03-17
Disclosed herein are compounds according to Formula (I) comprising PK/PD modulators for delivery of oligonucleotide-based agents, e.g., double stranded RNAi agents, to certain cell types, such for example skeletal muscle cells, in vivo. The PK/PD modulators disclosed herein, when conjugated to an oligonucleotide-based therapeutic or diagnostic agent, such as an RNAi agent, can enhance the delivery of the composition to the specified cells being targeted to facilitate the inhibition of gene expression in those cells.
Methods and compositions for controlled polypeptide synthesis
申请人:Deming Timothy J.
公开号:US20080125581A1
公开(公告)日:2008-05-29
Methods and compositions for the generation of polypeptides having varied material properties are disclosed herein. Methods include means for initiating the polymerization of aminoacid-N-carboxyanhydride (NCA) monomer by combining the monomer with an amido-containing metallacycle, for making self assembling amphiphilic block copolypeptides and related protocols for adding oligo(ethyleneglycol) functionalized aminoacid-N-carboxyanhydrides (NCAs) to polyaminoacid chains. Additional methods include means of adding an end group to the carboxy terminus of a polyaminoacid chain by reacting an alloc-protected amino acid amide with a transition metal-donor ligand complex to forming an amido-amidate metallacycle for use in further polymerization reactions. Novel compositions for use in peptide synthesis and design including five and six membered amido-containing metallacycles and block copolypeptides are also disclosed.