Synthesis of the KLMN Fragment of Gymnocin-A Using Oxiranyl Anion Convergent Methodology
摘要:
Synthesis of the KLMN fragment of gymnocin-A has been achieved by a [X + 2 + Y]-type convergent strategy involving the coupling of a K-ring triflate and an N-ring epoxy sulfone. Fusions of the L ring and the M ring were carried out by intramolecular S(N)2 substitution of a tertiary alcohol and reductive etherification to furnish the target molecule.
Synthesis of the KLMN Fragment of Gymnocin-A Using Oxiranyl Anion Convergent Methodology
摘要:
Synthesis of the KLMN fragment of gymnocin-A has been achieved by a [X + 2 + Y]-type convergent strategy involving the coupling of a K-ring triflate and an N-ring epoxy sulfone. Fusions of the L ring and the M ring were carried out by intramolecular S(N)2 substitution of a tertiary alcohol and reductive etherification to furnish the target molecule.