Methylenedioxy ring

[Canis aureus]

By the by, is it cause of oxytocin that after orgasm it is also hard to piss?

Are tthere any opioids containing methylenedioxy ring?

There is pukateine, some methylenedioxyaporphine or was it -apomorphine ( http://pu.health.digidoc.info/pukateine.htm )

 

[fastandbulbous]

Never thought about the orgasm/inability to piss thing, but urination is supressed when you have an erection so it might be a combination of both.

The methylenedioxy ring just seems to be a metabolic variant of the dimethoxy substitution pattern, The reason plants produce compounds that effect mammalian cns function is probably because there are a limited number of amino acids and while animals turn them into neurotransmitters, plants turn them into alkaloids. The structural similarities probably accounts for their activity