2012
Morales-Ríos, M. S., Rivera-Becerril, E., López-Camacho, P. Y., Pérez-Rojas, N. A., Suárez-Castillo, O. R. (2012). Preparation of O-Methyl Substituted 2-Oxofuro- and 2-Oxopyrrolidinoindolines by Reductive Lactonization of Oxindol-3-ylacetic Acids. Nat. Prod. Commun. 7, 1445-1451.
Abstract
A practical procedure for the preparation of O-methyl substituted 3a,8-dialkyl-2-oxofuroindolines is described. Reductive lactonization of the corresponding oxindol-3-ylacetic acids provides a route for the formation of this class of compounds. Further transformation of 2-oxofuroindolines into 2-oxopyrrolidinoindolines, and then to pyrrolidinoindolines demonstrates their versatility as key intermediates in natural products synthesis. The results of single-crystal X-ray crystallographic analyses are given for five of the studied compounds.
Unimolecular rearrangements of ketene-O,O-acetals and fragmentations occurring in the gas phase
Synthesis of Bromoindole Alkaloids from Laurencia brongniartii
Conformational studies on indole alkaloids from Flustra foliacea by NMR and molecular modeling
Regioselective Synthesis of 3-Indolyl(alkoxy)acetates
Aromatic Bromination versus Oxidation of Indolylmalonates by Bromine
Configuration, stereodynamics and crystal structure of 3-substituted-2-oxofuro[2,3-b]indoles
Absolute configuration determination of 2-(2-oxo-3-indolyl)acetamide derivatives