Toward a modular, bidirectional synthesis of (−)-mucocin

Autor: Sadagopan Raghavan, S. Ganapathy Subramanian
Rok vydání: 2011
Předmět:
Zdroj: Tetrahedron. 67:7529-7539
ISSN: 0040-4020
DOI: 10.1016/j.tet.2011.07.079
Popis: A convergent stereoselective synthesis of the C13–C34 fragment of (−)-mucocin is described. The salient features include (a) the bidirectional synthesis of the C-2 symmetric C13–C21 subunit, (b) regio- and stereoselective preparation of a 1,3-diol derivative from a diene activated by NBS via intramolecular nucleophilic sulfinyl group participation, (c) utilizing the self-metathesis reaction to prepare a functionalized C10 alkene, and (d) regio- and stereoselective intermolecular epoxide opening to construct the ether bond between C20 and C24. An organocatalytic α-hydoxylation has been employed to create the C4 stereogenic center of C1–C12 subunit. Attempted union of the two subunits utilizing the B-alkyl Suzuki coupling did not succeed.
Databáze: OpenAIRE