Synthesis of Pharmacologically Relevant Indoles with Amine Side Chains via Tandem Hydroformylation/Fischer Indole Synthesis
摘要:
The sequence of hydroformylation and Fischer indole synthesis starting from amino olefins and aryl hydrazines is described. In a convergent manner, the two units bearing pharmacologically relevant substituents are assembled in the final indolization step. This modular and diversity-oriented approach to tryptamines and homotryptamines can be conducted in water and allows synthesis of branched and nonbranched tryptamines as well as tryptamine-based pharmaceuticals such as the 5-HT1D agonist L 775 606.
A copper-catalyzed ring-opening hydroamination of methylenecyclopropanes with polymethylhydrosiloxane and O-benzoylhydroxylamines has been developed. The cyclopropane C–C bond cleavage occurs selectively at the more congested proximal position, and the corresponding homoallylamines are obtained in good to excellent yields. The umpolung electrophilic amination strategy with the hydroxylamine derivatives
Synthesis of Pharmacologically Relevant Indoles with Amine Side Chains via Tandem Hydroformylation/Fischer Indole Synthesis
作者:Axel M. Schmidt、Peter Eilbracht
DOI:10.1021/jo050464l
日期:2005.7.1
The sequence of hydroformylation and Fischer indole synthesis starting from amino olefins and aryl hydrazines is described. In a convergent manner, the two units bearing pharmacologically relevant substituents are assembled in the final indolization step. This modular and diversity-oriented approach to tryptamines and homotryptamines can be conducted in water and allows synthesis of branched and nonbranched tryptamines as well as tryptamine-based pharmaceuticals such as the 5-HT1D agonist L 775 606.
Étude de l'addition des organozinciques α-éthyléniques aux amines éthyléniques, acétyléniques et alléniques
作者:B. Mauzé、C. Nivert、L. Miginiac
DOI:10.1016/0022-328x(72)80043-3
日期:1972.10
of application of a new reaction, that of addition of α-ethylenic organozinc compounds to unsaturated (ethylenic, acetylenic and allenic) amines, have studied. It is shown by numerous examples that this reaction constitutes a general method of synthesis for mono- and di-ethylenic amines.