Syntheses based on 1,2-secopenicillins. Part 4. A new tricyclic β-lactam derivative
- 31 December 1976
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- Vol. 2 (2) , 189-192
- https://doi.org/10.1039/p19770000189
Abstract
Heating (3R,4R)-1-[azido-(t-butoxycarbonyl)methyl]-4-(prop-2-ynylthio)-3-(triphenylmethylamino)azetidin-2-one (4) in refluxing toluene resulted in smooth intramolecular cycloaddition of the azido-group to the acetylenic function to afford (5aR,6R,9ξ,)-t-butyl 6,7-dihydro-7-oxo-6-triphenylmethylamino-4H,5aH-azeto[2,1-b]-v-triazolo[3,4-e][1,3,5]thiadiazepine-9-carboxylate (5).This publication has 1 reference indexed in Scilit:
- Syntheses based on 1,2-secopenicillins. Part I. OxidationJournal of the Chemical Society, Perkin Transactions 1, 1976