105300-90-1Relevant articles and documents
Development of a new traceless aniline linker for solid-phase synthesis of azomethines. Application to parallel synthesis of a rod-shaped liquid crystalline library
Hioki, Hideaki,Fukutaka, Mizuki,Takahashi, Hideki,Kubo, Miwa,Matsushita, Kimihito,Kodama, Mitsuaki,Kubo, Kanji,Ideta, Keiko,Mori, Akira
, p. 10643 - 10651 (2005)
A new traceless linker was developed to synthesize a library of 42 compounds possessing an azomethine linkage using combinatorial solid-phase parallel synthesis. The loading of the substrates on a solid support and cleavage from the solid support were performed by an imine synthesis and by imine-exchanged process under mild conditions, respectively. Thioesters with a hydroxy group on the central core exhibited liquid crystalline properties with the widest transition temperatures in the library.
Ligand-Controlled Regiodivergence in Nickel-Catalyzed Hydroarylation and Hydroalkenylation of Alkenyl Carboxylic Acids**
Deng, Ruohan,Engle, Keary M.,Fu, Yue,Gao, Yang,Li, Zi-Qi,Liu, Peng,Tran, Van T.
supporting information, p. 23306 - 23312 (2020/10/19)
A nickel-catalyzed regiodivergent hydroarylation and hydroalkenylation of unactivated alkenyl carboxylic acids is reported, whereby the ligand environment around the metal center dictates the regiochemical outcome. Markovnikov hydrofunctionalization products are obtained under mild ligand-free conditions, with up to 99 % yield and >20:1 selectivity. Alternatively, anti-Markovnikov products can be accessed with a novel 4,4-disubstituted Pyrox ligand in excellent yield and >20:1 selectivity. Both electronic and steric effects on the ligand contribute to the high yield and selectivity. Mechanistic studies suggest a change in the turnover-limiting and selectivity-determining step induced by the optimal ligand. DFT calculations reveal that in the anti-Markovnikov pathway, repulsion between the ligand and the alkyl group is minimized (by virtue of it being 1° versus 2°) in the rate- and regioselectivity-determining transmetalation transition state.
DIARYLHYDANTOIN COMPOUNDS
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Page/Page column 5, (2009/05/28)
The present invention relates to diarylhydantoin compounds and methods for synthesizing them and using them in the treatment of hormone refractory prostate cancer.
Cyclic imino derivatives and pharmaceutical compositions containing them
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, (2008/06/13)
The invention relates to cyclic imino compounds which have, inter alia, valuable pharmacological properties, especially inhibitory effects on cell aggregation, pharmaceutical compositions which contain these compounds and processes for preparing them.
Antihypertensive dihydropyridine compositions, optical isomers and intermediates
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, (2008/06/13)
Compositions containing dihydropyridine derivatives which are useful for treating congestive heart failure, hypertension, or angina have the formula: STR1 or a pharmaceutically acceptable acid addition salt thereof, wherein n is an integer from 0 to 8; Y is --O--, --NH--, --NR2 --, --S--, --S(O)--, --S(O)2 --, or a bond; R1 and R2 are each independently A1, A2, A3 or A4 where A1 is --(CH2)m (CHOH)p CH2 OH; A2 is --(CH2)q CH(3-r) [(CH2)s OH]r ; A3 is --(CH2)q CH(3-r) [(CH2)p COOR3 ]r ; and A4 is --(CH2)m COOR3 ; where m is an integer from 1 to 8; p is an integer from 0 to 4; q is an integer from 0 to 8; r is 2 or 3; s is an integer from 1 to 4; and R3 is H or alkyl of 1 to 18 carbon atoms; R4 is --NO2, --CF3, or halo; and R5 is lower alkyl or --CH2 CH2 OCH3. Also disclosed are optical isomers of the above compounds, as well as intermediates in the preparation of these final products.
