1-[4-ethoxy-3-(6,7-dihydro-1-methyl-
7-oxo-3-propyl-1h-pyrazolo[4,3-d]pyrimidin-5-yl)
phenylsulfonyl]-4-methylpiperazine citrate

1-[4-乙氧基-3-（6，7-二氢-1-甲基-7-氧-3-丙基-1h-吡唑并-[4，3-d]嘧啶-5-基）苯磺酰基]-4-甲基哌嗪柠檬酸盐