Total Synthesis of (±)-Phytochromobilin Starting from Two Pyrrole Derivatives
- 8 June 1999
- journal article
- letter
- Published by Georg Thieme Verlag KG in Synlett
- Vol. 1999 (Sup. 1) , 901-904
- https://doi.org/10.1055/s-1999-3105
Abstract
(±)-Phytochromobilin was synthesized as an acid form by developing a convenient method for the preparation of A- and D-rings starting from a 2-tosylpyrrole derivative, followed by efficient construction of A/B- and C/D-ring components via Wittig-type coupling reaction of 5-tosylpyrrolinones with 2-formylpyrrole, and palladium catalyzed deprotection of allyl esters of propanoic acid side chains of C-8 and C-12.Keywords
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