the preferred route. The introduction of 4-alkyl groups into monobactams results in a decrease in activity against gram-positive bacteria, an increase in activity against gram-negative bacteria, and an increase in β-lactamase stability. Increasing the size of the alkyl group beyond methyl results in diminished intrinsic antibacterialactivity. 4β-Alkylmonobactams display better β-lactamase stability than
Method for preparation of sulphostin and its analogue or intermediates thereof
申请人:Nagai Masashi
公开号:US20050020834A1
公开(公告)日:2005-01-27
A method for preparing a compound represented by the following general formula (5)
where, n is an integer of 0 to 3; and Y represents a protecting group for an amino group, the method including the steps of reacting a compound represented by the following general formula (3)
where n and Y are as described above, with a silylating agent, and subsequently reacting it with P (═O) T
3
, where T represents a halogen atom, and further with ammonia.
A method for preparing an optically active intermediate of sulphostin or an analogue thereof, which is an optically active amine salt of an optically active compound represented by the following general formula (8)
where n is an integer of 0 to 3; Y represents a protecting group for the amino group; and each configuration at C* and P* may be the same or different and indicates S or R, the method including reacting a compound represented by the following general formula (7)
where n and Y are as described above; and the configuration of C* indicates either of S or R, with an optically active amine, and resolving the formed diastereomeric salt by fractional crystallization.
AMIDE DERIVATIVES OF LACTAM BASED N-ACYLETHANOLAMINE ACID AMIDASE (NAAA) INHIBITORS
申请人:The Regents of the University of California
公开号:US20160068483A1
公开(公告)日:2016-03-10
Described herein are compounds and pharmaceutical compositions which inhibit N-acylethanolamine acid amidase (NAAA). Described herein are methods for synthesizing the compounds set forth herein and methods for formulating these compounds as pharmaceutical compositions which include these compounds. Also described herein are methods of inhibiting NAAA in order to sustain the levels of palmitoylethanolamide (PEA) and other N-acylethanolamines (NAE) that are substrates for NAAA, in conditions characterized by reduced concentrations of NAE. Also, described here are methods of treating and ameliorating pain, inflammation, inflammatory diseases, and other disorders in which modulation of fatty acid ethanolamides is clinically or therapeutically relevant or in which decreased levels of NAE are associated with the disorder.
CARBAMATE DERIVATIVES OF LACTAM BASED N-ACYLETHANOLAMINE ACID AMIDASE (NAAA) INHIBITORS
申请人:The Regents of the University of California
公开号:US20160068482A1
公开(公告)日:2016-03-10
Described herein are compounds and pharmaceutical compositions which inhibit N-acylethanolamine acid amidase (NAAA). Described herein are methods for synthesizing the compounds set forth herein and methods for formulating these compounds as pharmaceutical compositions which include these compounds. Also described herein are methods of inhibiting NAAA in order to sustain the levels of palmitoylethanolamide (PEA) and other N-acylethanolamines (NAE) that are substrates for NAAA, in conditions characterized by reduced concentrations of NAE. Also, described here are methods of treating and ameliorating pain, inflammation, inflammatory diseases, and other disorders in which modulation of fatty acid ethanolamides is clinically or therapeutically relevant or in which decreased levels of NAE are associated with the disorder.
PROCESSES FOR PREPARATION OF SULPHOSTIN AND ITS ANALOGUES OR INTERMEDIATES THEREOF
申请人:Nippon Kayaku Kabushiki Kaisha
公开号:EP1457494A1
公开(公告)日:2004-09-15
A method for preparing a compound represented by the following general formula (5)
where, n is an integer of 0 to 3; and Y represents a protecting group for an amino group, the method including the steps of reacting a compound represented by the following general formula (3)
where n and Y are as described above, with a silylating agent, and subsequently reacting it with P (=O) T3, where T represents a halogen atom, and further with ammonia.
A method for preparing an optically active intermediate of sulphostin or an analogue thereof, which is an optically active amine salt of an optically active compound represented by the following general formula (8)
where n is an integer of 0 to 3; Y represents a protecting group for the amino group; and each configuration at C* and P* may be the same or different and indicates S or R, the method including reacting a compound represented by the following general formula (7)
where n and Y are as described above; and the configuration of C* indicates either of S or R, with an optically active amine, and resolving the formed diastereomeric salt by fractional crystallization.
一种制备由以下通式(5)代表的化合物的方法
其中,n 是 0 至 3 的整数;Y 代表氨基的保护基团,该方法包括以下步骤:使下一通式(3)所代表的化合物与硅烷化剂反应,其中 n 和 Y 如上所述。
其中,n 和 Y 如上所述,与硅烷化剂反应,然后与 P (=O) T3 反应,其中 T 代表卤素原子,再与氨反应。
一种制备舒磷定或其类似物的光学活性中间体的方法,该光学活性中间体是由下 列通式(8)代表的光学活性化合物的光学活性胺盐
其中 n 是 0 至 3 的整数;Y 代表氨基的保护基团;C* 和 P* 的每个构型可以相同或不同,并表示 S 或 R,该方法包括使下式通式(7)所代表的化合物反应
其中 n 和 Y 如上所述;C* 的构型表示 S 或 R,与光学活性胺反应,并通过分馏结晶分 解所形成的非对映异构盐。