SYNTHESIS OF 2-(4-AMINOPHENYL) BENZOTHIAZOLE DERIVATIVES AND USE THEREOF
申请人:Wang Jeh-Jeng
公开号:US20120215154A1
公开(公告)日:2012-08-23
The present invention provides a method of preparing a compound of formula 6
comprising:
(a) reacting a compound of formula 1
with a compound of formula 2
to form a compound of formula 3
wherein X of formula 2 is Cl or OH;
(b) treating the compound formula 3 with Lawesson's reagent to form a compound of formula 4
(c) reacting a compound of formula 4 with potassium ferricyanide to produce a compound of formula 5
and
(d) performing catalytic reduction of nitro group of the compound of formula 5 with palladium on charcoal to generate the compound of formula 6,
wherein R
1
of formulae 1-6 is H, C
1-10
alkyl, C
1-10
alkoxy or C
1-10
haloalkyl, and R
2
of formulae 1-6 is H or C
1-10
alkyl.
The present invention also provides a photodynamic therapy to a patient having at least one tumor comprising the steps of: administering a compound of formula 6 (wherein R
1
and R
2
are defined as the above) in a pharmaceutically acceptable carrier to the patient; waiting for a sufficient time to allow the administered compound to be taken up by a target tissue having the at least one tumor; and irradiating a region of the patient containing the target tissue; wherein growth of the tumor is inhibited.
Mild synthesis of <i>N</i>-acylsulfenamides from arylamides and disulfides
作者:Xing-Song Zhang、Xiao-Hong Zhang
DOI:10.1080/10426507.2015.1012670
日期:2016.1.2
synthesize N-acylsulfenamides via NaH-promoted sulfenylation of benzamides with readily available disulfides under mild conditions. A series of N-acylsulfenamides were easily obtained in moderate to high yields. Moreover, the obtained N-acylsulfenamides were used as thiolating reagents in the synthesis of sulfenylpyrroles and 3-sulfenylbenzofurans.
图形摘要 摘要 开发了一种有效的新方法,通过 NaH 促进苯甲酰胺与易于获得的二硫化物在温和条件下进行磺基化反应来合成 N-酰基次磺酰胺。一系列 N-酰基亚磺酰胺很容易以中等至高产率获得。此外,获得的 N-酰基亚磺酰胺可用作硫基吡咯和 3-硫基苯并呋喃合成中的硫醇化试剂。
Synthesis of Sulfilimines via Selective S–C Bond Formation in Water
作者:Yue Chen、Dong-mei Fang、He-sen Huang、Xiao-kang Nie、Shi-qi Zhang、Xin Cui、Zhuo Tang、Guang-xun Li
DOI:10.1021/acs.orglett.3c00604
日期:2023.3.31
Sulfilimines are valuable compounds both in organic synthesis and in pharmaceuticals. Here we developed a mild and simplified method for preparation of sulfilimines via selective S–Cbond formation rather than traditional S–N bond formation. The method is both attractive and useful for the following reasons: it uses a readily available alkylation reagent such alkyl bromide or alkyl iodide, it uses water
SYNTHESIS OF 2-(4-AMINOPHENYL)BENZOTHIAZOLE DERIVATIVES AND USE THEREOF
申请人:KAOHSIUNG MEDICAL UNIVERSITY
公开号:US20140046290A1
公开(公告)日:2014-02-13
The present invention provides a photodynamic therapy to a patient having at least one tumor comprising the steps of: administering a compound of formula 6 (wherein R
1
and R
2
are defined as the above) in a pharmaceutically acceptable carrier to the patient; waiting for a sufficient time to allow the administered compound to be taken up by a target tissue having the at least one tumor; and irradiating a region of the patient containing the target tissue, wherein growth of the tumor is inhibited.