Allylmetallation of isoquinolines, quinoline, and quinoxaline with allylic derivatives of zinc was examined for the first time. A convenient procedure was discovered and developed for the synthesis of 1,4-ethano-2,3-dihydroisoquinolines based on the reactions of isoquinolines with allylic derivatives of zinc. This multistage process involves double allylmetallation of the heterocyclic ring followed by cyclization through intramolecular carbometallation of the C=C bond. The structures of three key derivatives of 1,4-ethano-2,3-dihydroisoquinoline were established by X-ray diffraction analysis. The reactions of quinoxaline with allyl- and methallylzinc bromide proceeded stereospecifically to form trans-2,3-diallylated 1,2,3,4-tetrahydroquinoxalines. Heating of quinoline with methallylzinc bromide in THF afforded 4-methallylquinoline in nearly quantitative yield. The initially formed 1,4-metallation product underwent aromatization through elimination of HZnBr.
[EN] TETRAHYDROISOQUINOLINES AS SELECTIVE NADPH OXIDASE 2 INHIBITORS<br/>[FR] TÉTRAHYDROISOQUINOLINES UTILES COMME INHIBITEURS SÉLECTIFS DE NADPH OXIDASE 2
申请人:UNIV PITTSBURGH
公开号:WO2014179592A1
公开(公告)日:2014-11-06
Embodiments of bridged tetrahydroisoquinolines and methods for their use in selectively inhibiting nicotinamide adenine dinucleotide phosphate (NADPH) oxidase 2 are disclosed. The disclosed compounds have a structure according to general formula I or a pharmaceutically acceptable salt thereof: wherein "−−−−−−−" represents a single or double bond, R1 is hydrogen, halogen, lower aliphatic, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl; Ra is hydrogen, -CH2R2, R 3, or -SO2R 4; R 2 is lower aliphatic, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl; R3 is substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl; R4 is lower aliphatic, or substituted or unsubstituted aryl; and R5 is hydrogen, halogen, or lower aliphatic.
Tetrahydroisoquinolines as selective NADPH oxidase 2 inhibitors
申请人:University of Pittsburgh—Of the Commonwealth System of Higher Education
公开号:US10906876B2
公开(公告)日:2021-02-02
Embodiments of bridged tetrahydroisoquinolines and methods for their use in selectively inhibiting nicotinamide adenine dinucleotide phosphate (NADPH) oxidase 2 are disclosed. The disclosed compounds have a structure according to general formula I or a pharmaceutically acceptable salt thereof:
wherein “” represents a single or double bond, R1 is hydrogen, halogen, lower aliphatic, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl; Ra is hydrogen, —CH2R2, R3, or —SO2R4; R2 is lower aliphatic, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl; R3 is substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl; R4 is lower aliphatic, or substituted or unsubstituted aryl; and R5 is hydrogen, halogen, or lower aliphatic.
TETRAHYDROISOQUINOLINES AS SELECTIVE NADPH OXIDASE 2 INHIBITORS
申请人:PAGANO Patrick J.
公开号:US20160083351A1
公开(公告)日:2016-03-24
Embodiments of bridged tetrahydroisoquinolines and methods for their use in selectively inhibiting nicotinamide adenine dinucleotide phosphate (NADPH) oxidase 2 are disclosed. The disclosed compounds have a structure according to general formula I or a pharmaceutically acceptable salt thereof:
wherein “
” represents a single or double bond, R
1
is hydrogen, halogen, lower aliphatic, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl; R
a
is hydrogen, —CH
2
R
2
, R
3
, or —SO
2
R
4
; R
2
is lower aliphatic, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl; R
3
is substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl; R
4
is lower aliphatic, or substituted or unsubstituted aryl; and R
5
is hydrogen, halogen, or lower aliphatic.
US9796681B2
申请人:——
公开号:US9796681B2
公开(公告)日:2017-10-24
——
作者:Yu. N. Bubnov、F. V. Pastukhov、Z. A. Starikova、A. V. Ignatenko
DOI:10.1023/a:1015065721466
日期:——
Allylmetallation of isoquinolines, quinoline, and quinoxaline with allylic derivatives of zinc was examined for the first time. A convenient procedure was discovered and developed for the synthesis of 1,4-ethano-2,3-dihydroisoquinolines based on the reactions of isoquinolines with allylic derivatives of zinc. This multistage process involves double allylmetallation of the heterocyclic ring followed by cyclization through intramolecular carbometallation of the C=C bond. The structures of three key derivatives of 1,4-ethano-2,3-dihydroisoquinoline were established by X-ray diffraction analysis. The reactions of quinoxaline with allyl- and methallylzinc bromide proceeded stereospecifically to form trans-2,3-diallylated 1,2,3,4-tetrahydroquinoxalines. Heating of quinoline with methallylzinc bromide in THF afforded 4-methallylquinoline in nearly quantitative yield. The initially formed 1,4-metallation product underwent aromatization through elimination of HZnBr.