Optically active isoxazole derivatives and intermediates for pre

Details Optically active isoxazole derivatives and intermediates for pre Optically active isoxazole derivatives and intermediates for pre

1992-06-30

1993-06-15

Lone, Werren B.

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

Organic compounds

Oxygen containing

568425, 568442, C07C 4542

Patent

active

052200744

ABSTRACT:
The present invention relates to novel optically active isoxazole derivatives represented by general formula: ##STR1## which are useful as intermediates for synthesis of prostaglandin and a process for producing the same as well as novel aldehyde compounds represented by general formula: ##STR2## which are intermediates for preparing the compounds [XI] described above and a process for preparation thereof. In the compounds shown by these formulae, R.sup.1 represents an alkyl group or a cycloalkyl group which may have an alkoxy group or a group shown by -Ra-A-B (wherein Ra is an alkyl group; A is a hetero atom or an single bond; and B is an aromatic or hetero ring which may have a substituent(s)); and R.sup.2 and R.sup.3, which may be the same or different, each represents an aralkyl group, a silyl group or an acyl group.

REFERENCES:
patent: 4275241 (1981-06-01), Bohm et al.
patent: 4927805 (1990-05-01), Dolfini et al.

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