Dopa-sulfinylnorvaline adduct

Ultimately, after many years we have come to the conclusion that introduction of the sulfinylnorvaline moiety at a late stage is fraught with functional group incompatibilities, and that in order to synthesize ustiloxin A we most likely need to constmct a dopa-sulfinylnorvaline adduct similar to 74, then incorporate our AAA-Ugi method employed for ustiloxin D with the sulfinyl-norvaline side chain aheady installed. Will we ever embark on this It depends if 1 can wait long enough for the ustiloxin project to fade from the students corporate memory yet again, and have the right student arrive at my door. 

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