Monday, July 13, 2009

Haouamine biosynthesis ?

Baran found out biosynthesis of haouamine 1 via 4 is not possible .fig. 1, so turned down a proposed biosynthesis route by a french group. scheme 2.
here I propose a revised synthetic route a-[b]-c based on the biosynthesis scheme.
the reasoning is to make a bigger sized macro ring b first, then the center six membered ring should be accessable.

2 comments:

Deezy7 said...
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Deezy7 said...

Baran's synth of it a while back was sweet, I dont rememeber what the last step was but i remember it formed the phenol ring from like a lactone for a alkyne, by working off CO2. It was pretty.