PHARMACEUTICAL INTERMEDIATE


2-Methy1-10-oxo-10H-9-oxa-1-aza-anthracene-6- carboxylic acid methy1 ester

6-Methy1-9-oxo-9H-xanthene-2-carboxylic acid methy1 ester

3-Bromo-2-fluoro-7-iodo-xanthen-9-one

6-Iodo-2-methy1-9-oxa-1-aza-anthracen-10-one

6-Amino-2-iodo-xanthen-9-one

2-Amino-10-oxo-10H-9-oxa-1-aza-anthracene-6- carboxylic acid methy1 ester

2-Iodo-6-methy1-xanthen-9-one

6-Methy1-9-oxo-9H-xanthene-2-carboxylic acid Methy1 ester

6-Amino-9-oxo-9H-xanthene-2-carboxylic acid methy1 ester