6-O-Carbamate-11,12-lacto-ketolide antimicrobials of the formula:
1
wherein R
1
, R
2
, R
3
R
7
, and R
8
are as described herein and in which the substituents have the meaning indicated in the description. These compounds are useful as antibacterial agents.
6-O-Acyl ketolide antibacterials of the formula:
1
wherein R
1
, R
2
, R
3
, R
4
, W, X, X′, Y, and Y′ are as described herein and in which the substituents have the meaning indicated in the description. These compounds are useful as antibacterial agents.
6-O-Carbamoyl ketolide antibacterials of the formula:
1
wherein R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, X, X′, Y, and Y′ are as described herein and in which the substituents have the meaning indicated in the description. These compounds are useful as antibacterial agents.
Facile Synthesis of 2H-Benzo[h]Chromenes via an Arylamine-Catalyzed Mannich Cyclization Cascade Reaction
作者:Yueteng Zhang、Peng Ji、Xiang Meng、Feng Gao、Fanxun Zeng、Wei Wang
DOI:10.3390/molecules26123617
日期:——
Mannich-cyclization cascade reaction was developed for facilesynthesis of substituted 2H-benzo[h]chromenes. The notable feature of the process included the efficient generation of ortho-quinone methides (o-QMs) catalyzed by a simple aniline. The mild reaction conditions allowed for a broad spectrum of 1- and 2-naphthols and trans-cinnamaldehydes to engage in the cascade sequence with high efficiency.
开发了一种简单的芳胺催化曼尼希环化级联反应,用于轻松合成取代的 2 H-苯并[ h ]色烯。该过程的显着特点包括在简单的苯胺催化下有效生成邻醌甲基化物( o -QM)。温和的反应条件允许广谱的1-和2-萘酚以及反式肉桂醛高效地参与级联序列。
3-Descladinosyl-6-O-carbamoyl and 6-O-carbonoyl macrolide antibacterial agents
申请人:——
公开号:US20040018994A1
公开(公告)日:2004-01-29
3-Descladinosyl-6-O-carbamoyl and 6-O-carbonoyl macrolide antibacterial agents of the formula:
1
wherein R
1
, W, R
3
, R
4
, R
5
, R
6
, X, X′, and Z are as described herein and in which the substituents have the meaning indicated in the description. These compounds are useful as antibacterial agents.