1,4-dichloropyridine-3,5-carboxylic-acid derivatives and preparation method thereof
1,4-dichloropyridine-3,5-carboxylic-acid derivatives and preparation method thereof
- CN 1,269,362 A
- Filed: 12/30/1999
- Published: 10/11/2000
- Est. Priority Date: 12/05/1994
- Status: Active Grant
- EN CH
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- Pin
