2.alpha.-(2-Carboxy-2-formylethyl )-3.beta.-hydroxy-5-oxo-.beta.

Details 2.alpha.-(2-Carboxy-2-formylethyl )-3.beta.-hydroxy-5-oxo-.beta. 2.alpha.-(2-Carboxy-2-formylethyl )-3.beta.-hydroxy-5-oxo-.beta.

1975-05-08

1976-12-21

Love, Ethel G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260514D, C07D31772

Patent

active

039988490

ABSTRACT:
Racemic or optically-active prostaglandin E.sub.1 is synthesized from racemic or optically-active precursors in good yield at the various steps from 3.alpha.,6,7,7.alpha.-tetrahydro-4-methyl-2-oxo-1.beta.-indaneheptanoic acid methyl ester proceeding through 2.alpha.-(2-carboxyethyl)-3.beta.-hydroxy-5-oxo-1.beta.-cyclopentaneheptan oic acid methyl ester, .delta.-lactone, 5-cyclic ethylene acetal, 2.alpha.-(2-carboxy-2-formylethyl)-3.beta.-hydroxy-5-oxo-1.beta.-cyclopent aneheptanoic acid methyl ester, .delta.-lactone, 5-cyclic ethylene acetal, 2.alpha.-(2-carboxy-2-oxoethyl)-3.beta.-hydroxy-5-oxo-1.beta.-cyclopentane heptanoic acid methyl ester, .delta.-lactone, 5-cyclic ethylene acetal, and 3.beta.-hydroxy-2.alpha.-(3-oxo-1-octenyl)-5-oxo-1.beta.-cyclopentanehepta noic acid methyl ester, 5-cyclic ethylene acetal.

REFERENCES:
patent: 3890351 (1975-06-01), Taub
patent: 3899525 (1975-08-01), Oda et al.
Taub et al., Chem. Communications, pp. 1258-1259 (1970).

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