Intramolecular Cycloaddition of the Azomethine Ylides Derived from α-Amino Acids or Esters and 5-Oxo-6-heptenals or 4-Oxo-5-hexenals
1990 ◽
Vol 63
(10)
◽
pp. 2866-2871
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2019 ◽
Vol 2019
(39)
◽
pp. 6606-6610
◽
1989 ◽
Vol 62
(6)
◽
pp. 1960-1968
◽