Syntheses of dispiro[2.1.4.1]decane and dispiro[2.0.3.3]decane
作者:John E Baldwin、Maryann E Keene、Rajesh Shukla
DOI:10.1016/s0040-4039(00)01577-x
日期:2000.12
Efficientsyntheses of the hitherto unknown hydrocarbons dispiro[2.1.4.1]decane and dispiro[2.0.3.3]decane have been realized through reaction sequences involving spiro[3.4]octan-2-one and spiro[3.4]octan-5-one as key intermediates.
1‐Azaspiro[3.3]heptane as a Bioisostere of Piperidine**
作者:Alexander A. Kirichok、Hennadii Tkachuk、Yevhenii Kozyriev、Oleh Shablykin、Oleksandr Datsenko、Dmitry Granat、Tetyana Yegorova、Yuliya P. Bas、Vitalii Semirenko、Iryna Pishel、Vladimir Kubyshkin、Dmytro Lesyk、Oleksii Klymenko‐Ulianov、Pavel K. Mykhailiuk
DOI:10.1002/anie.202311583
日期:2023.12.18
1-Azaspiro[3.3]heptanes were synthesized, characterized, and validated biologically as bioisosteres of piperidine. Incorporation of this core into the anesthetic drug bupivacaine instead of the piperidine ring resulted in a patent-free analogue with high activity.