Synthesis of 4-aza analog of ramelteon: a novel tricyclic 1,6,7,8-tetrahydro-2H-cyclopenta[d]furo[2,3-b]pyridine derivative as melatonin receptor ligand
β Scribed by Tatsuki Koike; Yasutaka Hoashi; Takafumi Takai; Osamu Uchikawa
- Book ID
- 104099141
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- French
- Weight
- 408 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
Intramolecular Diels-Alder reaction Desilylation-cyclization a b s t r a c t The 4-aza analog of ramelteon (Γ)-1, a novel tricyclic 1,6,7,8-tetrahydro-2H-cyclopenta[d]furo[2,3-b]pyridine derivative, was synthesized via the intramolecular inverse electron demand Diels-Alder reaction followed by fluoride-induced desilylation-cyclization.
π SIMILAR VOLUMES
The synthesis of new tricyclic azaindolic analogs of the hormone melatonin is described. Treatment of 1-(4-bromobutyl)pyrrolo[3,2-b]pyridine derivative with tributyltin hydride and AIBN results in radical cyclisation to give the 6,7,8,9-tetrahydropyrido[2,3-b]indolizine ring system. A new synthetic