The bay-region diol epoxides and tetrahydro epoxides of benz(c)acridine were from 1-4 orders of magnitude more mutagenic to bacterial (Salmonella typhimurium) and mammalian cells (Chinese hamster V-79 cells) than were their non-bay-region counterparts. In all the mutagenic test systems studied, the bay-region diol epoxides and tetrahydro epoxides of B(c)AC were substantially more active than the analogs and derivatives of B(a)AC, indicating the importance of the position of N-heteroatom on the biological activity. Metabolic activation studies with hepatic microsomes from Aroclor 1254-treated rats indicated that B(c)Ac 3,4-dihydrodiol was metabolized to mutagenic products to a greater extent than B(a)AC 3,4-dihydrodiol. The 1,2-, 5,6-, 8,9-, and 10,11-dihydrodiol of B(c)AC were not metabolically activated to mutagenic metabolites.
The 5,6-dihydrodiol of benz(c)acridine has been detected as a metabolite together with other, unidentified dihydrodiols & monohydroxyderivatives in studies in which benz(c)acridine was incubated with rat liver and lung microsomal preparations.
The metabolism of benz(a)- and benz(c)acridine by liver and lung microsomes from untreated, phenobarbital (PB)-treated and benzo(k)fluoranthene (BkF)-treated rats was studied by gas chromatography/mass spectrometry (GC/MS). Epoxidation and hydrolysis of the epoxides to dihydrodiols were found to be the predominant pathways for all substrates. N-Oxidation is likely to occur in the case of benz(c)acridine. No unequivocal evidence could be obtained for the formation of the ultimate carcinogens (the t-3,4-dihydrodiol-1,2-epoxides) in case of both benz(a)- and benz(c)acridine. K-Region oxidation was induced by phenobarbital, whereas the formation of non-K-region metabolites increased after BkF treatment in the case of benz(c)acridine.
The main pathway of the metabolic activation of benz(a)- and benz(c)acridine in rat lung and liver microsomes was oxidation to phenols and dihydrodiols. Oxidation at the K-region predominated in both acridines with microsomes of untreated rats and was stimulated by phenobarbital pretreatment. The benz(c)acridine metabolism with lung and liver microsomes showed a similar behavior. Even induction by phenobarbital and benzo(K)fluoranthene did not influence the ratio between K-region and non-K region oxidation.
The metabolism of benz(a)- and benz(c)acridine by liver and lung microsomes from untreated, phenobarbital (PB)-treated and benzo(k)fluoranthene (BkF)-treated rats has been studied by gas chromatography/mass spectrometry. Epoxidation and hydrolysis of the epoxides to dihydrodiols were found to be the predominant pathways for all substrates. N-oxidation is likely to occur in the case of benz(c)acridine. However, no unequivocal evidence could be obtained for the formation of the ultimate carcinogens (the t-3,4-dihydrodiol-1,2-epoxides). K-region oxidation was induced by phenobarbital, whereas the formation of non-K-region metabolites incr after BkF treatment in the case of benz(c)acridine.
来源:Hazardous Substances Data Bank (HSDB)
毒理性
致癌性证据
没有关于人类的数据。动物致癌性的证据有限。总体评估:第3组:该物质对人类致癌性无法分类。
No data are available in humans. Limited evidence of carcinogenicity in animals. OVERALL EVALUATION: Group 3: The agent is not classifiable as to its carcinogenicity to humans.
来源:Hazardous Substances Data Bank (HSDB)
毒理性
致癌物分类
国际癌症研究机构致癌物:苯并[c]吖啶
IARC Carcinogenic Agent:Benz[c]acridine
来源:International Agency for Research on Cancer (IARC)
毒理性
致癌物分类
国际癌症研究机构(IARC)致癌物分类:第3组:无法归类其对人类致癌性
IARC Carcinogenic Classes:Group 3: Not classifiable as to its carcinogenicity to humans
来源:International Agency for Research on Cancer (IARC)
IARC Monographs:Volume 32: (1983) Polynuclear Aromatic Compounds, Part 1: Chemical, Environmental and Experimental Data
Volume Sup 7: Overall Evaluations of Carcinogenicity: An Updating of IARC Monographs Volumes 1 to 42, 1987; 440 pages; ISBN 92-832-1411-0 (out of print)
Volume 103: (2013) Bitumens and Bitumen Emissions, and some N- and S-Heterocyclic Aromatic Hydrocarbons
来源:International Agency for Research on Cancer (IARC)
The metabolism of benz(a)- and benz(c)acridine by liver and lung microsomes from untreated, phenobarbital (PB)-treated and benzo(k)fluoranthene (BkF)-treated rats has been studied by gas chromatography/mass spectrometry. Epoxidation and hydrolysis of the epoxides to dihydrodiols were found to be the predominant pathways for all substrates. N-oxidation is likely to occur in the case of benz(c)acridine. However, no unequivocal evidence could be obtained for the formation of the ultimate carcinogens (the t-3,4-dihydrodiol-1,2-epoxides). K-region oxidation was induced by phenobarbital, whereas the formation of non-K-region metabolites incr after BkF treatment in the case of benz(c)acridine.
The mechanism of transport by polynuclear aromatic hydrocarbons (PAH) into cells & between intracellular membranes is discussed. From the partitioning parameters, the rate limiting step involves solvation of transfer species in the interfacial water at phospholipid surface. Transfer of pyrene out of the phosphatidylcholine vesicles was examined. /Polynuclear aromatic hydrocarbons/
来源:Hazardous Substances Data Bank (HSDB)
吸收、分配和排泄
多环芳烃在脂肪组织和高脂食品中具有高度溶解性。
Polynuclear aromatic hydrocarbons are highly soluble in adipose tissue and lipids. /Polynuclear aromatic hydrocarbons/
Copper-Catalyzed N,N-Diarylation of Amides for the Construction of 9,10-Dihydroacridine Structure and Applications in the Synthesis of Diverse Nitrogen-Embedded Polyacenes
作者:Mei-Ling Tan、Shuo Tong、Sheng-Kai Hou、Jingsong You、Mei-Xiang Wang
DOI:10.1021/acs.orglett.0c01775
日期:2020.7.17
catalyzed N,N-diarylation reaction of amides with various di(o-bromoaryl)methanes to produce diverse 9,10-dihydroacridine derivatives. The resulting 9,10-dihydroacridine derivatives were oxidized selectively under mild conditions to afford acridine, acridinone, and acridinium derivatives. The copper-catalyzed N,N-diarylation reaction coupled with oxidative aromatization reaction enabled the facile construction
Cobalt-Catalyzed Electrophilic Aminations with Anthranils: An Expedient Route to Condensed Quinolines
作者:Jie Li、Eric Tan、Niklas Keller、Yi-Hung Chen、Peter M. Zehetmaier、Andreas C. Jakowetz、Thomas Bein、Paul Knochel
DOI:10.1021/jacs.8b11466
日期:2019.1.9
The reaction of various organozinc pivalates with anthranils provides anilines derivatives, which cyclize under acidic conditions providing condensed quinolines. Using alkenylzinc pivalates, electron-rich arylzinc pivalates or heterocyclic zinc pivalates produces directly the condensed quinolines of which several structures belong to new heterocyclic scaffolds. These N-heterocycles are of particular
Cycloisomerization – a straightforward way to benzo[h]quinolines and benzo[c]acridines
作者:Aleksandr N. Shestakov、Alena S. Pankova、Mikhail A. Kuznetsov
DOI:10.1007/s10593-017-2179-5
日期:2017.10
Cycloisomerization of 3-alkynyl-2-arylpyridines and quinolines offers a straightforward approach to benzo[h]quinolines and benzo[c]-acridines. Substituent at the triple bond governs a choice between transition metal or Brønsted acidcatalysis. A direct electrophilic activation by trifluoromethanesulfonic acid induces an almost quantitative cyclization of the o-aryl(phenylethynyl) fragment. PtCl2 efficiently
3-炔基-2-芳基吡啶和喹啉的环异构化为苯并[ h ]喹啉和苯并[ c ] -ac啶提供了一种直接的方法。在三键处的取代基决定过渡金属催化或布朗斯台德酸催化之间的选择。三氟甲磺酸的直接亲电子活化引起邻-芳基(苯基乙炔基)片段的几乎定量环化。PtCl 2有效催化2-芳基-3-乙炔基戊烯的环化。
Über aromatenkomplexe von metallen CVIII. Chrom-tricarbonyl-komplexe kondensierter aromaten mit heteroatomen
The chromium tricarbonyl complexes with the condensed heterocycles benzofuran, dibenzofuran, benzo [b] naphtho [2,3-d] furan, benzo [b] thiophene, dibenzothiophene, benzo [b] naphtho [2,1-d] thiophene, indole, carbazole, benzo [h] quinoline, benzo [f] quinoline and benzo [a] acridine have been prepared for the first time. The structures of the complexes were determined by analysis of their 1H NMR spectra
三羰基铬铬与稠合杂环苯并呋喃,二苯并呋喃,苯并[ b ]萘[2,3- d ]呋喃,苯并[ b ]噻吩,二苯并噻吩,苯并[ b ]萘[2,1- d ]噻吩,吲哚,首次制备了咔唑,苯并[ h ]喹啉,苯并[ f ]喹啉和苯并[ a ] a啶。配合物的结构通过分析其1 H NMR光谱来确定。
Oxygen‐Linked Cyclopentadienyl Rhodium(III) Complexes‐Catalyzed Asymmetric C−H Arylation of Benzo[
<i>h</i>
]quinolines with 1‐Diazonaphthoquinones
作者:Chongqing Pan、Si‐Yong Yin、Shao‐Bo Wang、Qing Gu、Shu‐Li You
DOI:10.1002/anie.202103638
日期:2021.7.5
functionalization reactions have witnessed a significant progress in organic synthesis. In sharp contrast, the reported chiral Cp ligands are limited to C-linked Cp and are often synthetically challenging. To address these issues, we have developed a novel class of tunable chiral cyclopentadienyl ligands bearing oxygen linkers, which were efficient catalysts for C−H arylation of benzo[h]quinolines with