Expedient Synthesis of the Tetracyclic Core of ent-Nakadomarin A
摘要:
An efficient eight-step assembly of the tetracyclic core (ABCD rings) of ent-(+)-nakadomarin A, a bioactive hexacyclic marine alkaloid, has been realized with Sonogashira coupling, platinum(II)-promoted cascade cyclizations, and saturation of a challenging carbon - carbon double bond through a hydroboration/oxidation/xanthate formation/Barton - McCombie deoxygenation sequence as key transformations.
Expedient Synthesis of the Tetracyclic Core of ent-Nakadomarin A
摘要:
An efficient eight-step assembly of the tetracyclic core (ABCD rings) of ent-(+)-nakadomarin A, a bioactive hexacyclic marine alkaloid, has been realized with Sonogashira coupling, platinum(II)-promoted cascade cyclizations, and saturation of a challenging carbon - carbon double bond through a hydroboration/oxidation/xanthate formation/Barton - McCombie deoxygenation sequence as key transformations.
An efficient eight-step assembly of the tetracyclic core (ABCD rings) of ent-(+)-nakadomarin A, a bioactive hexacyclic marine alkaloid, has been realized with Sonogashira coupling, platinum(II)-promoted cascade cyclizations, and saturation of a challenging carbon - carbon double bond through a hydroboration/oxidation/xanthate formation/Barton - McCombie deoxygenation sequence as key transformations.