abstract |
(57) [Summary] [Structure] WS having the chemical structural formula shown in the following chemical formula 1. 63967 substances. [Chemical 1] (However, in the formula, R is n-pentyl, 3-methyl-n- Pentyl, n-hexyl, 5-methyl-n-hexyl, It represents n-heptyl or 5-methyl-n-heptyl. ) [Effect] It has an excellent cyclic GMP phosphodiesterase inhibitory action. |