Synthesis of Carbapenems Containing Peptidoglycan Mimetics and Inhibition of the Cross‐Linking Activity of a Transpeptidase of
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Specificity
The carbapenem class of β‐lactams has been optimized against Gram‐negative bacteria producing extended‐spectrum β‐lactamases by introducing substituents at position C2. Carbapenems are currently investigated for the treatment of tuberculosis as these drugs are potent covalent inhibitors of l,d‐transpeptidases involved in mycobacterial cell wall assembly. The optimization of carbapenems for inactivation
作者:George W. Huffman、Paul D. Gesellchen、Jan R. Turner、Robert B. Rothenberger、Harold E. Osborne、F. Dean Miller、Jerry L. Chapman、Stephen W. Queener
DOI:10.1021/jm00088a028
日期:1992.5
Highly purified isopenicillin N synthase (IPNS) from two sources (naturallyoccurring in Penicillium chrysogenum and that expressed in Escherichia coli via a cloned gene derived from Cephalosporium acremonium) have been isolated and utilized in vitro to test synthetic modifications of the natural substrate, (L-alpha-amino-delta-adipyl)-L-cysteinyl-D-valine (ACV). A very sensitive procedure utilizing
Method of making 6-aminocaproic acid as active pharmaceutical ingredient
申请人:Sunny pharmtech Inc.
公开号:US08809581B2
公开(公告)日:2014-08-19
The present invention provides a method for making 6-aminocaproic acid as an active pharmaceutical ingredient. The method comprises: performing a hydrolysis procedure to have ε-caprolactam react with acid or base to generate a first reaction mixture, performing a modification procedure to have a solubility regulating agent reacts with 6-aminocaproic acid in the first reaction mixture to form a second reaction mixture including an aminocaproic acid intermediate, performing a separation procedure to have the intermediate separated from the second reaction mixture and performing a hydrogenation procedure to have the aminocaproic acid intermediate hydrogenated to form a 6-aminocaproic acid product.
Compounds for targeting and agents for imaging, Prostate-specific membrane antigen (PSMA) are disclosed. Methods of synthesizing compounds and imaging agents, as well as methods for imaging PSMA are also disclosed. The imaging agents disclosed are suitable for PET and SPECT imaging.
本研究公开了用于靶向前列腺特异性膜抗原(PSMA)的化合物和成像剂。还公开了合成化合物和成像剂的方法,以及 PSMA 的成像方法。所公开的成像剂适用于 PET 和 SPECT 成像。
PSMA Imaging Agents
申请人:Siemens Medical Solutions USA, Inc.
公开号:US20210032286A1
公开(公告)日:2021-02-04
Compounds for targeting and agents for imaging, prostate-specific membrane antigen (PSMA) are disclosed. Methods of synthesizing compounds and imaging agents, as well as methods for imaging PSMA are also disclosed. The imaging agents disclosed are suitable for PET and SPECT imaging.