| 摘要 |
PCT No. PCT/EP98/04478 Sec. 371 Date Jan. 24, 2000 Sec. 102(e) Date Jan. 24, 2000 PCT Filed Jul. 18, 1998 PCT Pub. No. WO99/05113 PCT Pub. Date Feb. 4, 1999The invention relates to compounds of formula (I): wherein R1, R2, R3, R31, R4, R5, R51 and R6 are as defined in the specification. The compounds are phosphodiesterase inhibitors. Also disclosed are pharmaceutical compositions and methods of use of the compounds. |
