| 摘要 |
<p>5-(4-Chloro-3-sulphamoylbenzoyl) -2,3-dihydrobenzofuran -2-carboxylic acids of formula (I) and their salts are new. R1 and R2 = H, halogen or Me. 5-(4-Chloro-3-sulphamoylbenzoyl) -6,7-dichloro-2,3-dihydro-be nzo furan-2-carboxylic acid (Ia) is specifically claimed.</p> |
