Synthesis and anticonvulsant activity of dihydrochlorides of indoline-3′spiro-1-(1,2,3,4-tetrahydro-β-carboline derivatives
✍ Scribed by S. A. Pogosyan; N. P. Grigoryan; R. G. Paronikyan
- Publisher
- Springer
- Year
- 2007
- Tongue
- English
- Weight
- 80 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0091-150X
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The stereospecific synthesis of trans-1,3-disubstituted-1,2,3,4\_tetrahydro $-carbolines has been accomplished in good yield by a two step sequence which involves Pi&et-Spengler condensation of Nb-benzyltryptophan methyl: ester with aldehydes, followed by removal of the 2-benzyl moiety from the corr
## Abstract Reaction of tryptamine (1) with 2 and 3 gives the enamino ketones 4a and 5, resp., which on treatment with trifluoroacetic acid lead to the 2‐substituted indoles 8 and 9, respectively. Acylation of 4a followed by reaction with trifluoroacetic acid or a Lewis acid affords the 1,2,3,4‐tet