Process for preparing a cis oxabicyclo olefinic acid and ester f

Details Process for preparing a cis oxabicyclo olefinic acid and ester f Process for preparing a cis oxabicyclo olefinic acid and ester f

1990-12-18

1993-09-14

Ivy, C. Warren

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D30700

Patent

active

052450554

ABSTRACT:
A compound having the structure ##STR1## is reacted with Ph.sub.3 P.dbd.CH(CH.sub.2).sub.3 Y wherein Y is --CO.sub.2 .sup..crclbar. M.sup..sym. or --C.tbd.N to form ##STR2## which is aminated and esterified to form ##STR3## which may be used to form [1S-[1.alpha.,2.alpha.(Z),3.alpha., 4.alpha.[[-7-[3-[[[[1-oxoheptyl) -amino]acetyl]amino]methyl]-7-oxabicyclo-[2.2.1]-hept-2-yl]-5-heptenoic acid.

REFERENCES:
patent: 4413054 (1979-03-01), Sprague
patent: 4663336 (1987-05-01), Nakane et al.
G. Guanti et al., Tetrahedron Letters, 27, 4639 (1986).
R. Bloch et al., Tetrahedron Letters, 26, 4087 (1985).
J. Bryan Jones et al., Can. J. Chem. vol. 62, 2578-2582 (1984).
K. P. Lok et al., J. Am. Chem. Soc. 107, 2521-2526 (1985).

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