| 摘要 |
<p>T-substd. phenol-4-oxoquinodine-3-carboxylic acid cpds. of formula (I) and their pharmaceutically acceptable salts are new R1 = a gp. of formula (a) or (b); R2 = a gp. of formula (c); R3 = H, Me or Et; R4 = OH, F or 1-6C alkanoyloxy; R5 = H or F; and X = H or F; provided that when R' = (a) and X = H, R2 is not 4-fluorophenyl or 3,4-difluorophenyl.</p> |
