Oligoanthranilamides. Non-Peptide Subunits That Show Formation of Specific Secondary Structure
摘要:
A family of novel oligomers based on the anthranilamide nucleus has been prepared and shown to form well-defined secondary structural features. H-1 NMR and X-ray crystallographic techniques have demonstrated that intramolecular hydrogen bonds play a key role in stabilizing both linear sheet and helical conformational forms.
Novel Folding Patterns in a Family of Oligoanthranilamides: Non-Peptide Oligomers That Form Extended Helical Secondary Structures
作者:Yoshitomo Hamuro、Steven J. Geib、Andrew D. Hamilton
DOI:10.1021/ja963449u
日期:1997.11.1
Anthranilamide derivatives are used as the basis for a series of novel oligomers that fold into helical secondarystructures in the solid state. When combined with pyridine-2,6-dicarboxylic acid and 4,6-dimethoxy-1,3-diaminobenzene subunits, oligoanthranilamides can be induced to take up a coiled conformation corresponding to two turns of a helix. X-ray crystallography shows that intramolecular hydrogen
Structure-activity relationships of fungicidal N-benzoylanthranilic esters.
作者:Osamu KIRINO、Shigeo YAMAMOTO、Toshiro KATO
DOI:10.1271/bbb1961.44.2149
日期:——
The antifungal activity of 37 N-(methoxy-substituted benzoyl)anthranilic esters was tested on the powdery mildew of barley caused by Erysiphe graminis by the pot test. Among the methyl N-(methoxy-substituted benzoyl)anthranilates tested, 3, 4-dimethoxybenzoyl derivative exhibited the highest activity. The variation in fungicidal activity of N-(3, 4-dimethoxy-benzoyl)anthranilic esters was shown to be related with variation in hydrophobicity and the electronic property of the alcohol moiety of the ester. The branching at the α-position of the alcohol moiety of the ester was detrimental to the activity.
Plasticized thermoset resin, and associated cured resin, method of curing, and article comprising cured resin
申请人:The University of Massachusetts
公开号:US10913844B2
公开(公告)日:2021-02-09
A curable composition includes a hydrogen-bonded prepolymer, a plasticizer, and, optionally, a crosslinking agent. The plasticizer includes a reactive plasticizer having structure (I), (II), or (III), wherein X is —OR1, —N(R1)2, —R4—OR1, or —R4—N(R1)2, wherein R1 is independently at each occurrence hydrogen or C1-6 alkyl, and R4 is C1-12 alkylene; y is zero or 1; z is zero or 1; R2 is C1-12 alkyl; and R3 is C1-12 alkyl when z is 1, or R3 is C1-12 alkyl or H when z is zero.
Photobleaching Activity of 2-(Phenylamino)methylidenecyclohexane-1,3-diones in Tobacco (<i>Nicotiana</i> <i>tabacum</i>) Cultured Cells
作者:Jing-Ming Wang、Tadao Asami、Fan-Sik Che、Noboru Murofushi、Shigeo Yoshida
DOI:10.1021/jf960962i
日期:1997.7.1
A series of phenylalkylidenecyclohexane-1,3-dione derivatives were designed and synthesized as vinylogous analogs of phthalimides, which are known photobleaching herbicides. The bleaching activity of synthesized compounds was assayed with photomixotrophic tobacco cultured cells under either light or dark conditions. Both the chlorophyll and the carotenoid contents of the cells treated with the cyclic diones decreased to almost zero within 24 h under the light condition but not under the dark condition. This rapid emergence of bleaching activity with light is one of the most distinctive actions of Protox-inhibiting herbicides; however, the cyclic dione did not inhibit protoporphyrinogen oxidase in vitro. Thus, we concluded that the cyclic diones possessed a different herbicidal mode of action from Protox-inhibiting herbicide.
Synthesis, antimicrobial evaluation, ot-QSAR and mt-QSAR studies of 2-amino benzoic acid derivatives
A series of 2-amino benzoic acid derivatives (1-28) were synthesized and evaluated for their in vitro antimicrobial activity against the panel of Gram positive, Gram negative bacterial and fungal strains. The results of antimicrobial studies indicated that, in general, the synthesized compounds were found to be bacteriostatic and fungistatic in action. QSAR studies performed by the development of one target and multi target models indicated that multi-target model was effective in describing the antimicrobial activity as well demonstrated the effect of structural parameters viz. LUMO, (3)chi(v) and W on antimicrobial activity of 2-amino benzoic acid derivatives.