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- Newsgroups: alt.drugs
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!mane.cgrg.ohio-state.edu!djh
- From: djh@osc.edu (David Heisterberg)
- Subject: Re: MPTP (was Re: MDMA and self-esteem)
- Message-ID: <1992Dec23.140300.11127@cgrg.ohio-state.edu>
- Sender: news@cgrg.ohio-state.edu (Usenet News Poster)
- Organization: The Ohio Supercomputer Center
- References: <1992Dec15.155012.10012@mnemosyne.cs.du.edu> <1992Dec18.221614.12434@midway.uchicago.edu> <1992Dec23.073154.15839@u.washington.edu>
- Date: Wed, 23 Dec 1992 14:03:00 GMT
- Lines: 36
-
- In article <1992Dec23.073154.15839@u.washington.edu> lamontg@stein.u.washington.edu (Lamont Granquist) writes:
- >MPTP is produced by a synthetic error in making MPPP, which is an opiate
- >whose chemical formula I don't seem to have on hand. From what I read on
-
- As well as I remember, from having looked into this a few years ago,
- MPPP is the propanoate ester of 4-phenyl,4-hydroxy,N-methylpiperidine.
-
-
- Me Me
- | |
- N this can lose N
- / \ propanoic acid / \
- CH2 CH2 to give CH2 CH2
- | | | |
- CH2 CH2 CH2 CH
- \ / \ //
- C C
- / \ O |
- Ph OC3H5 Ph
-
- MPPP MPTP
-
- MPTP is oxidized _in vivo_ to MPP+, the toxic species. I think
- deprenyl showed some indication in preventing the oxidation.
- I don't think MPTP has any opiate activity itself, and I believe it
- was produced simply by accident. The reaction MPPP -> MPTP goes
- rapidly as temperature is increased.
-
- A technical note: I say MPPP loses propanoic acid rather than
- water because I don't think the free hydroxy compound is ever
- isolated in the synthesis. And, of course, it is made via
- everyone's favorite organic name reaction, the Grignard.
- --
- David J. Heisterberg (djh@osc.edu) Hoeren Sie gut zu,
- The Ohio Supercomputer Center und wiederholen Sie!
- Columbus, Ohio -- ALM German
-