A concise enantiopure synthesis of six monoterpenic alkaloids of the actinidine series possessing a cyclopenta [c] pyridine skeleton,(+)-deoxyrhexifoline (4),(+)-boschniakinic acid (5),(+)-boschniakine (6),(−)-plantagonine (7),(−)-indicaine (8) and (−)-tecostidine (9) is reported starting with the chiral precursor 3-bromo-5-((4R)-phenyloxazolin-2-yl) pyridine (10). It involves a C-4 regioselective connection of a butene appendice and an ...
