Diastereoselective Synthesis of Fluorine-Containing Pyrrolizidines via Triphenylcarbenium Tetrafluoroborate-Promoted Carbofluorination of N-3-Arylpropargylpyrrolidine-Tethered Tertiary Allylic Alcohols
摘要:
Inexpensive and air stable triphenylcarbenium tetrafluoroborate efficiently promoted the carbofluorination of N-arylpropargylpyrrolidines bearing a tertiary allylic alcohol tether at the 2-position of the pyrrolidine ring to provide 1-isobutenyl-2-(fluoro(phenyl)methylenylhexahydro-1H-pyrrolizidines in a stereoselective fashion. When subjected to bis(trifluoromethane)sulfonamide, the same substrates underwent cycloisomerization reaction within minutes to generate 1-isobutenyl-2benzoylhexahydro-1H-pyrrolizidines with excellent stereoselectivity.
Diastereoselective Synthesis of Fluorine-Containing Pyrrolizidines via Triphenylcarbenium Tetrafluoroborate-Promoted Carbofluorination of N-3-Arylpropargylpyrrolidine-Tethered Tertiary Allylic Alcohols
摘要:
Inexpensive and air stable triphenylcarbenium tetrafluoroborate efficiently promoted the carbofluorination of N-arylpropargylpyrrolidines bearing a tertiary allylic alcohol tether at the 2-position of the pyrrolidine ring to provide 1-isobutenyl-2-(fluoro(phenyl)methylenylhexahydro-1H-pyrrolizidines in a stereoselective fashion. When subjected to bis(trifluoromethane)sulfonamide, the same substrates underwent cycloisomerization reaction within minutes to generate 1-isobutenyl-2benzoylhexahydro-1H-pyrrolizidines with excellent stereoselectivity.
TETRAHYDROPYRIDINE DERIVATIVES AND THEIR USE AS ANTIBACTERIAL AGENTS
申请人:Dong-A St Co., Ltd.
公开号:US20180086709A1
公开(公告)日:2018-03-29
The present disclosure relates to a novel tetrahydropyridine derivative compound, a stereoisomer thereof, or a pharmaceutically acceptable salt thereof, methods for preparing the compounds, methods for inhibiting UDP-3-O—(R-3-hydroxymyristoyl)-N-acetylglucosamine deacetylase (LpxC), methods for treating Gram-negative bacterial infections, the use of the compounds for the preparation of therapeutic medicaments for treating Gram-negative bacterial infections, and pharmaceutical compositions for prevention or treatment of Gram-negative bacterial infections, which contain the compounds. The compounds represented by formula I, stereoisomers thereof or pharmaceutically acceptable salts thereof according to the present disclosure can exhibit excellent effects on the treatment bacterial infections.
Substituted bicyclic derivatives useful as anticancer agents
申请人:——
公开号:US20010034351A1
公开(公告)日:2001-10-25
The invention relates to compounds of the formula 1
1
and to pharmaceutically acceptable salts and solvates thereof, wherein A, X, R
1
, R
3
and R
4
are as defined herein. The invention also relates to methods of treating abnormal cell growth in mammals with administering the compounds of formula 1 and to pharmaceutical compositions for treating such disorders which contain the compounds of formula 1. The invention also relates to methods of preparing the compounds of formula 1.
Tetrahydropyridine derivatives and their use as antibacterial agents
申请人:Dong-A St Co., Ltd.
公开号:US10160724B2
公开(公告)日:2018-12-25
The present disclosure relates to a novel tetrahydropyridine derivative compound, a stereoisomer thereof, or a pharmaceutically acceptable salt thereof, methods for preparing the compounds, methods for inhibiting UDP-3-O—(R-3-hydroxymyristoyl)-N-acetylglucosamine deacetylase (LpxC), methods for treating Gram-negative bacterial infections, the use of the compounds for the preparation of therapeutic medicaments for treating Gram-negative bacterial infections, and pharmaceutical compositions for prevention or treatment of Gram-negative bacterial infections, which contain the compounds. The compounds represented by formula I, stereoisomers thereof or pharmaceutically acceptable salts thereof according to the present disclosure can exhibit excellent effects on the treatment bacterial infections.
本公开涉及一种新型四氢吡啶衍生物化合物、其立体异构体或其药学上可接受的盐、制备该化合物的方法、抑制 UDP-3-O-(R-3-hydroxymyristoyl)-N-acetylglucosamine deacetylase (LpxC)、治疗革兰氏阴性细菌感染的方法、使用这些化合物制备治疗革兰氏阴性细菌感染的治疗药物,以及含有这些化合物的预防或治疗革兰氏阴性细菌感染的药物组合物。根据本公开内容,式 I 所代表的化合物、其立体异构体或其药学上可接受的盐类可在治疗细菌感染方面表现出卓越的效果。
SUBSTITUTED BICYCLIC DERIVATIVES USEFUL AS ANTICANCER AGENTS