Semisynthetic Dimers of Antiparkinsonic Ergot Alkaloids
摘要:
1,1-Linked dimers of semisynthetic ergoline alkaloids with antiparkinsonic activity were prepared in 60 - 63% yield from the parent compounds (pergolide, terguride) by action of alpha,omega -dihalogenalkanes in DMSO/KOH. N-1-omega -Halogenalkyl pergolide and terguride precursors were used for the synthesis of non-symmetric dimers. N-6 Alkylation was achieved (yield 18 - 28%) using 1,6-dihalogenohexane in DMF/K2CO3.
1,1-Linked dimers of semisynthetic ergoline alkaloids with antiparkinsonic activity were prepared in 60 - 63% yield from the parent compounds (pergolide, terguride) by action of alpha,omega -dihalogenalkanes in DMSO/KOH. N-1-omega -Halogenalkyl pergolide and terguride precursors were used for the synthesis of non-symmetric dimers. N-6 Alkylation was achieved (yield 18 - 28%) using 1,6-dihalogenohexane in DMF/K2CO3.