One-pot microwave assisted synthesis of new 2-alkoxycarbonylmethylene-4-oxo-1,5-benzo-, naphtho-, and pyridodiazepines and assessment of their cytogenetic activity
摘要:
1,5-Benzo-, naphtho-, and pyridodiazepines 3 have been synthesized in excellent yields in one-step from the reaction of o-phenylenediamines with acetonedicarboxylates through microwave assisted acid catalysis. In order to ascertain their cytogenetic activity in vitro at doses equivalent to the per os doses of common 1,4-benzodiazepine drugs, Sister Chromatid Exchanges (SCEs) were employed, and for the determination of cytostaticity the Proliferation Rate Index (PRI) on lymphocytes of human whole blood cultures was estimated. It was found that benzodiazepines 3a, 3c, and 3e exhibit significant cytoprotection, but mild cytostatic effect (a statistically significant reduction of SCEs and a confined decrease of PRI values at similar concentrations). The most active compound was found to be 3e. (C) 2013 Elsevier Masson SAS. All rights reserved.
One-pot microwave assisted synthesis of new 2-alkoxycarbonylmethylene-4-oxo-1,5-benzo-, naphtho-, and pyridodiazepines and assessment of their cytogenetic activity
摘要:
1,5-Benzo-, naphtho-, and pyridodiazepines 3 have been synthesized in excellent yields in one-step from the reaction of o-phenylenediamines with acetonedicarboxylates through microwave assisted acid catalysis. In order to ascertain their cytogenetic activity in vitro at doses equivalent to the per os doses of common 1,4-benzodiazepine drugs, Sister Chromatid Exchanges (SCEs) were employed, and for the determination of cytostaticity the Proliferation Rate Index (PRI) on lymphocytes of human whole blood cultures was estimated. It was found that benzodiazepines 3a, 3c, and 3e exhibit significant cytoprotection, but mild cytostatic effect (a statistically significant reduction of SCEs and a confined decrease of PRI values at similar concentrations). The most active compound was found to be 3e. (C) 2013 Elsevier Masson SAS. All rights reserved.
Dimethyl allene-1,3-dicarboxylates react with o-phenylenediamine to give 1H-1, 5-benzodiazepinones and not benzimidazoles; the transient enamine intermediate shows preference for a 7-exo-trig ring closure.
1,3-二羧酸二甲酯与邻苯二胺反应生成1 H -1,5-苯并二氮杂pin酮而不是苯并咪唑; 瞬时烯胺中间体显示出对7 -exo-trig闭环的偏爱。
Ackroyd, John; Scheinmann, Feodor, Journal of Chemical Research, Miniprint, 1982, # 4, p. 1012 - 1026
作者:Ackroyd, John、Scheinmann, Feodor
DOI:——
日期:——
Acheson, R. Morrin; Wallis, John D., Journal of the Chemical Society. Perkin transactions I, 1982, # 8, p. 1905 - 1914
作者:Acheson, R. Morrin、Wallis, John D.
DOI:——
日期:——
ACKROYD J.; SCHEINMANN F., J. CHEM. SOC. CHEM. COMMUN., 1981, NO 7, 339-340
作者:ACKROYD J.、 SCHEINMANN F.
DOI:——
日期:——
ACKROYD, J.;SCHEINMANN, F., J. CHEM. RES. MICROFICHE, 1982, N 4, 89