2-Methylchromone derivatives and process for their preparation

Details 2-Methylchromone derivatives and process for their preparation 2-Methylchromone derivatives and process for their preparation

1983-01-12

1985-04-23

Chan, Nicky

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

544 27, 544 28, C07D31122

Patent

active

045131457

ABSTRACT:
A novel 2-methylchromone derivative represented by the general formula: ##STR1## wherein R.sub.1 means a hydrogen atom or a lower alkanoyl group. The above derivative is a useful intermediate for the synthesis of cephem activities, which are also effective against infections of the urinary tract, etc. A preparation process of the above chromone derivative is also disclosed.

REFERENCES:
patent: 4309354 (1982-01-01), Nomoto et al.
patent: 4331606 (1982-05-01), Nomoto et al.

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