4541-15-5Relevant articles and documents
Synthetic studies on lycopodine: Construction of hexahydrojulolidine core by intramolecular Mannich reaction
Sato, Takanao,Ueda, Hirofumi,Tokuyama, Hidetoshi
, p. 7177 - 7180 (2014)
The tricyclic core skeleton of lycopodine was constructed by the intramolecular Mannich reaction of a 12-membered cyclic amine. The concise assembly of the macrocyclic intermediate was executed by the sequential inter- and intramolecular N-alkylation of a
Stereoselective Total Synthesis of Mangiferaelactone using D -Mannose as a Chiral Pool
Reddy, Basi V. Subba,Reddy, Pathuri Sivaramakrishna,Babu, Kummari Vijaya,Reddy, Bhemavarapu Phaneendra,Yadav, Jhillu Singh
, p. 1395 - 1402 (2015)
A convergent total synthesis of mangiferaelactone has been accomplished in a highly stereoselective manner from readily available D-mannose. The following methods like organocatalytic enantioselective epoxidation, ring-closing metathesis, and Steglich est
Synthesis of the C1-C16 fragment of spirastrellolide A
Liu, Jia,Yang, Jin Haek,Ko, Changhong,Hsung, Richard P.
, p. 6121 - 6123 (2006)
Synthesis of the C1-C16 fragment of spirastrellolide A is described here featuring Sharpless asymmetric epoxidation, an acid promoted O-1,4-addition, and Mukaiyama 1,3-anti-aldol.
Highly Selective Hydrogenation of C═C Bonds Catalyzed by a Rhodium Hydride
Gu, Yiting,Lisnyak, Vladislav G.,Norton, Jack R.,Salahi, Farbod,Snyder, Scott A.,Zhou, Zhiyao
supporting information, p. 9657 - 9663 (2021/07/19)
Under mild conditions (room temperature, 80 psi of H2) Cp*Rh(2-(2-pyridyl)phenyl)H catalyzes the selective hydrogenation of the C═C bond in α,β-unsaturated carbonyl compounds, including natural product precursors with bulky substituents in the β position and substrates possessing an array of additional functional groups. It also catalyzes the hydrogenation of many isolated double bonds. Mechanistic studies reveal that no radical intermediates are involved, and the catalyst appears to be homogeneous, thereby affording important complementarity to existing protocols for similar hydrogenation processes.
Copper-Catalyzed Borylative Methylation of Alkyl Iodides with CO as the C1 Source: Advantaged by Faster Reaction of CuH over CuBpin
Wu, Fu-Peng,Wu, Xiao-Feng
supporting information, p. 11730 - 11734 (2021/04/22)
CuH and CuBpin are versatile catalysts and intermediates in organic chemistry. However, studies that involve both CuH and CuBpin in the same reaction is still rarely reported due to their high reactivity. Now, a study on CuH- and CuBpin-catalyzed borylative methylation of alkyl iodides with CO as the C1 source is reported. Various one carbon prolongated alkyl boranes (RCH2Bpin and RCH(Bpin)2) were produced in moderate to good yields from the corresponding alkyl iodides (RI). In this cooperative system, CuH reacts with alkyl iodide faster than CuBpin.
Composition for controlling pine wood nematode containing benzyloxyalcohol
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Paragraph 0055-0056, (2021/06/15)
The present invention relates to a composition for controlling pine nematode comprising a benzyloxyalcohol compound and a method for controlling pine nematode using the same.
Nematicidal activity of benzyloxyalkanols against pine wood nematode
Kim, Junheon,Lee, Su Jin,Park, Joon Oh,Yoon, Kyungjae Andrew
, p. 1 - 9 (2021/03/15)
Pine wilt disease (PWD) is caused by the pine wood nematode (PWN; Bursaphelenchus xylophilus) and causes severe environmental damage to global pine forest ecosystems. The current strategies used to control PWN are mainly chemical treatments. However, the continuous use of these reagents could result in the development of pesticide-resistant nematodes. Therefore, the present study was undertaken to find potential alternatives to the currently used PWN control agents abamectin and emamectin. Benzyloxyalkanols (BzOROH; R = C2–C9 ) were synthesized and the nematicidal activity of the synthetic compounds was investigated. Enzymatic inhibitory assays (acetylcholinesterase (AChE) and glutathione S-transferase (GST)) were performed with BzOC8OH and BzOC9OH to understand their mode of action. The benzyloxyalkanols showed higher nematicidal activity than did benzyl alcohol. Among the tested BzOROHs, BzC8OH and BzC9OH showed the strongest nematicidal activity. The LD50 values of BzC8OH and BzC9OH were 246.1 and 158.0 ppm, respectively. No enzyme inhibitory activity was observed for BzC8OH and BzC9OH. The results suggested that benzyloxyalcohols could be an alternative nematicidal agent.
COMPOUNDS AND METHODS TO ATTENUATE TUMOR PROGRESSION AND METASTASIS
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Paragraph 0282-0283, (2020/05/28)
This invention relates to certain compounds or pharmaceutically acceptable salts thereof, and for the use of the compounds to treat cancer. In another aspect, the disclosure relates to a pharmaceutical composition comprising a compound of Formula (1), For
Oxidative Deprotection of p-Methoxybenzyl Ethers via Metal-Free Photoredox Catalysis
Ahn, Deok Kyun,Kang, Young Woo,Woo, Sang Kook
, p. 3612 - 3623 (2019/03/11)
An efficient and greener deprotection method for p-methoxybenzyl (PMB) ethers using a metal-free visible light photoredox catalyst and air and ammonium persulfate as the terminal oxidants is presented. Various functional groups and protecting groups were tolerated in the developed method to achieve good to excellent yields in short reaction times. Significantly, the developed method was compatible with PMB ethers derived from primary, secondary, and tertiary alcohols and a gram-scale reaction. Mechanistic studies support a proposed reaction mechanism that involves single electron oxidation of the PMB ether.
Strategies to develop selective CB2 receptor agonists from indole carboxamide synthetic cannabinoids
Moir, Michael,Lane, Samuel,Lai, Felcia,Connor, Mark,Hibbs, David E.,Kassiou, Michael
supporting information, p. 291 - 309 (2019/07/17)
Activation of the CB2 receptor is an attractive therapeutic strategy for the treatment of a wide range of inflammatory diseases. However, receptor subtype selectivity is necessary in order to circumvent the psychoactive effects associated with activation of the CB1 receptor. We aimed to use potent, non-selective synthetic cannabinoids designer drugs to develop selective CB2 receptor agonists. Simple structural modifications such as moving the amide substituent of 3-amidoalkylindole synthetic cannabinoids to the 2-position and bioisosteric replacement of the indole core to the 7-azaindole scaffold are shown to be effective and general strategies to impart receptor subtype selectivity. 2-Amidoalkylindole 16 (EC50 CB1 > 10 μM, EC50 CB2 = 189 nM) and 3-amidoalkyl-7-azaindole 21 (EC50 CB1 > 10 μM, EC50 = 49 nM) were found to be potent and selective agonists with favourable physicochemical properties. Docking studies were used to elucidate the molecular basis for the observed receptor subtype selectivity for these compounds.