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A regio- and stereoselective 1,3-dipolar cycloaddition for the synthesis of novel spiro-pyrrolothiazolyloxindoles and their antitubercular evaluation
被引:170
作者:
Prasanna, Pitchaimani
[1
]
Balamurugan, Kamaraj
[1
]
Perumal, Subbu
[1
]
Yogeeswari, Perumal
[2
]
Sriram, Dharmarajan
[2
]
机构:
[1] Madurai Kamaraj Univ, Sch Chem, Dept Organ Chem, Madurai 625021, Tamil Nadu, India
[2] Birla Inst Technol & Sci Pilani, Pharm Grp, Med Chem & Antimycobacterial Res Lab, Hyderabad 500078, Andhra Pradesh, India
关键词:
Antitubercular activity;
Mycobacterium tuberculosis;
Azomethine ylide;
1,3-Dipolar cycloaddition;
2-(Arylmethylene)-2,3-dihydro-1H-inden-1-ones;
Spiro-pyrrolothiazolyloxindoles;
STRUCTURE-BASED DESIGN;
MAMMALIAN-CELL CYCLE;
ANTIMYCOBACTERIAL EVALUATION;
REGIOSELECTIVE SYNTHESIS;
UNCARIA-TOMENTOSA;
FACILE SYNTHESIS;
TANDEM PROTOCOL;
NITRILE OXIDES;
OXINDOLE;
DISCOVERY;
D O I:
10.1016/j.ejmech.2010.09.019
中图分类号:
R914 [药物化学];
学科分类号:
100701 ;
摘要:
The 1,3-dipolar cycloaddition of azomethine ylides derived from substituted isatins and 1,3-thiazolane-4-carboxylic acid to a series of 2-(arylmethylene)-2,3-dihydro-1H-inden-1-ones afforded twenty nine novel spiro-pyrrolothiazolyloxindoles regio- and stereoselectively in moderate yields. These compounds were screened for their in vitro activity against Mycobacterium tuberculosis H37Ry (MTB) using agar dilution method. Among 29 compounds screened, spiro[5.3']-5'-nitrooxindole-spiro-[6.3"1-2,3-dihydro-1H-inden-1"-one-7-(2,3-dichlorophenyl)tetrahydro-1H-pyrrolo[1,2-c][1,3]thiazole, was found to be the most active compound with MIC of 2.8 mu M against MTB, being 1.67 and 2.70 times more active than ciprofloxacin and ethambutol respectively. (C) 2010 Elsevier Masson SAS. All rights reserved.
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页码:5653 / 5661
页数:9
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