Tetrahedron p. 10531 - 10548 (1992)
Update date:2022-08-02
Topics:
Niwa, Haruki
Ogawa, Takeshi
Okamoto, Osamu
Yamada, Kiyoyuki
A total synthesis of the natural enantiomer of monocrotaline (1), a representative of carcinogenic pyrrolizidine alkaloids having an 11-membered retronecine dilactone was achieved through regioselective coupling of (+)-retronecine (3) and the optically active protected necic acid 8, the latter being prepared enantioselectively from the meso-diester 11.
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