[nocrown]

Hi guys. This is a 2 part question. I am only asking for product A for now (I think I know what will happen with the base for B).

When I see this I immediately think of diels-alder but I am unsure what to do with the Oxygen in place of a carbon.

If there was no oxygen I would have added maybe something like the pic I drew with A and B being the side chains (sorry not a good artist). I'm a little lost here really and any pointers would be appreciated.

[discodermolide]

Furan also undergoes Diels-Adler reactions. So draw out the structure of the product and see where it takes you.

[nocrown]

Furan also undergoes Diels-Adler reactions. So draw out the structure of the product and see where it takes you.

Thank you so much although I'm on mobile and cant upload a drawing I see where the oxygen goes now when I looked in the textbook about furans and saw a very similar reaction. Thanks so much! I just needed a push!