
Organic Letters p. 2306 - 2309 (2015)
Update date:2022-08-04
Topics:
Sharma, Pradeep K.
Romanczyk, Leo J.
Kondaveti, Leelakrishna
Reddy, Bollu
Arumugasamy, Jeeva
Lombardy, Richard
Gou, Yanni
Schroeter, Hagen
The first novel stereoselective synthesis of naturally occurring A1 (1) and A2 proanthocyanidins (2) has been achieved. The key synthetic steps involved (a) the formation of a coupled product (13 or 14) between an open chain C-ring C-4 hydroxyethoxy analo
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