Novel isocarbacyclins and processes for production thereof

Details Novel isocarbacyclins and processes for production thereof Novel isocarbacyclins and processes for production thereof

1987-05-01

1988-11-29

Killos, Paul J.

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

Organic compounds

Carboxylic acid esters

562427, 556428, 549427, C07C147107

Patent

active

047883197

ABSTRACT:
A novel isocarbacyclin which is a compound represented by the following formula ##STR1## wherein R.sup.1 represents a hydrogen atom, or a C.sub.1 -C.sub.4 alkyl or alkenyl group; R.sup.2 and R.sup.3 are identical or different and each represents a hydrogen atom, a tri(C.sub.1 -C.sub.7)hydrocarbon-silyl group or a group forming an acetal linkage together with the oxygen atom of the hydroxyl group; R.sup.4 represents a hydrogen atom, a methyl group or a vinyl group; R.sup.5 represents an unsubstituted linear or branched C.sub.3 -C.sub.8 alkyl group which may be interrupted by an oxygen atom, a substituted linear or branched C.sub.1 -C.sub.5 group in which the substituent is a C.sub.1 -C.sub.6 alkoxy group or a phenyl, phenoxy or C.sub.3 -C.sub.10 cycloalkyl group which may be substituted further, a phenyl group which may be substituted, a phenoxy group which may be substituted, or a C.sub.3 -C.sub.10 cycloalkyl group which may be substituted; n is 0 or 1; and Ar represents a substituted or unsubstituted phenyl group, its enantiomorph, or a mixture both in an arbitrary ratio.

REFERENCES:
Tetrahedron Letters, vol. 25, No. 44, pp. 5087-5090, 1984; T. Mase et al.
Tetrahedron Letters, vol. 27, No. 7, pp. 845-846, 1986; D. Ferroud et al.
Tetrahedron Letters, No. 36, 1972, pp. 3815-3817, Bagli et al.

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