The present disclosure discloses a modified compound of andrographolide, and particularly discloses a compound shown in formula (I) and (II) or a pharmaceutically acceptable salt thereof.
The invention relates to isoquinolin-3-ylurea derivatives of formula (I) wherein R1 represents (C1-C3)alkyl, (C1-C3)haloalkyl or cyclopropyl, R4 represents H and the substituents R2 and R3 and R5 have the meanings disclosed in the specification; and to the salts of such compounds. These compounds are useful for the prevention or the treatment of bacterial infections.
The invention relates to isoquinolin-3-ylurea derivatives of formula (I) wherein R
1
represents (C
1
-C
3
)alkyl, (C
1
-C
3
)haloalkyl or cyclopropyl, R
4
represents H and the substituents R
2
and R
3
and R
5
have the meanings disclosed in the specification; and to the salts of such compounds. These compounds are useful for the prevention or the treatment of bacterial infections.
Synthesis of <i>N</i>-Confused Porphyrin Analogues by β-Azafulvenone Tetramerization
作者:Greg GuangHua Qiao、Ming Wah Wong、Curt Wentrup
DOI:10.1021/jo9609438
日期:1996.11.15
beta-Azafulvenones 16 and 33 were generated from 14 or 18 and 31 or 37, respectively, and directly observed by IR spectroscopy. These heterocyclic ketenes tetramerize to the macrocycles 20 and 34.
Efficient Synthesis of N-Alkylated 4-Pyridones by Copper-Catalyzed Intermolecular Asymmetric Propargylic Amination
作者:Wen Shao、Ye Wang、Ze-Peng Yang、Xiao Zhang、Shu-Li You
DOI:10.1002/asia.201800373
日期:2018.5.4
Copper‐catalyzed intermolecularasymmetricpropargylicamination with 4‐hydroxypyridines has been realized for the first time. In the presence of Cu complex derived from Pybox ligand, the N‐propargylated 4‐pyridones were obtained under mild reaction conditions with up to 99 % yield and 95 % ee. The Pybox ligand bearing a 4‐F‐phenyl substituent plays a key role for the high enantioselectivity. The products