按照生物碱的结构来分类，苦参碱属于

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30242' and id < 2446465 and id<>'2446465' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30242' and id > 2446465 and id<>'2446465' order by id asc limit 5