Studies on nitrogen metabolism using carbon-13 NMR spectroscopy. 6. Biosynthesis of sarubicin A. Synthesis and incorporation of 6-hydroxy[13CO15NH2]anthranilamide
摘要:
We have previously demonstrated that 6-hydroxyanthranilic acid (3) is specifically incorporated into sarubicin A (1) by Streptomyces helicus. 6-Hydroxyanthranilamide (4) has now been synthesized in five steps from m-anisidine in a manner that allowed efficient introduction of isotope labels to prepare [(CONH2)-C-13-N-15]-4a. A new synthesis of 3 from m-anisidine has also been developed. 4a was fed to S. helicus, and a 1.29% incorporation into 1b was obtained. Examination of the C-13 NMR spectrum of 1b revealed predominantly intact incorporation, with a minor amount of 4a (0.13%) first undergoing in vivo hydrolysis to the corresponding acid. Thus, carboxamide formation is the next step in the biosynthesis of 1.
Studies on nitrogen metabolism using carbon-13 NMR spectroscopy. 6. Biosynthesis of sarubicin A. Synthesis and incorporation of 6-hydroxy[13CO15NH2]anthranilamide
摘要:
We have previously demonstrated that 6-hydroxyanthranilic acid (3) is specifically incorporated into sarubicin A (1) by Streptomyces helicus. 6-Hydroxyanthranilamide (4) has now been synthesized in five steps from m-anisidine in a manner that allowed efficient introduction of isotope labels to prepare [(CONH2)-C-13-N-15]-4a. A new synthesis of 3 from m-anisidine has also been developed. 4a was fed to S. helicus, and a 1.29% incorporation into 1b was obtained. Examination of the C-13 NMR spectrum of 1b revealed predominantly intact incorporation, with a minor amount of 4a (0.13%) first undergoing in vivo hydrolysis to the corresponding acid. Thus, carboxamide formation is the next step in the biosynthesis of 1.
Sulfonamides having antiangiogenic and anticancer activity
申请人:——
公开号:US20040157836A1
公开(公告)日:2004-08-12
Compounds having methionine aminopeptidase-2 inhibitory (MetAP2) are described. Also described are pharmaceutical compositions comprising the compounds, methods of treatment using the compounds, methods of inhibiting angiogenesis, and methods of treating cancer.
[EN] 2-(INDAZOL-5-YL)-6-(PIPERIDIN-4-YL)-1,7-NAPHTHYRIDINE DERIVATIVES AND RELATED COMPOUNDS AS MODULATORS FOR SPLICING NUCLEIC ACIDS AND FOR THE TREATMENT OF PROLIFERATIVE DISEASES<br/>[FR] DÉRIVÉS DE 2-(INDAZOL-5-YL)-6-(PIPÉRIDIN-4-YL)-1,7-NAPHTYRIDINE ET COMPOSÉS ASSOCIÉS UTILES COMME MODULATEURS POUR L'ÉPISSAGE D'ACIDES NUCLÉIQUES ET POUR LE TRAITEMENT DE MALADIES PROLIFÉRATIVES
申请人:[en]REMIX THERAPEUTICS INC.
公开号:WO2023133217A1
公开(公告)日:2023-07-13
The present disclosure features compounds and related compositions that, inter alia, modulate nucleic acid splicing, e.g., splicing of a pre-mRNA, as well as methods of use thereof.