摘要:
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.-cyclopentaneheptanoic acid methyl ester, .delta.-lactone, 5-cyclic ethylene acetal, 2.alpha.-(2-carboxy-2-formylethyl)-3.beta.-hydroxy-5-oxo-1.beta.-cyclopentaneheptanoic acid methyl ester, .delta.-lactone, 5-cyclic ethylene acetal, 2.alpha.-(2-carboxy-2-oxoetyl)-3.beta.-hydroxy-5-oxo-1.beta.-cyclopentaneheptanoic acid methyl ester, .delta.-lactone, 5-cyclic ethylene acetal, and 3.beta.-hydroxy-2.alpha.-(3-oxo-1-octenyl)-5-oxo-1.beta.-cyclopentaneheptanoic acid methyl ester, 5-cyclic ethylene acetal.
摘要:
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.-cyclopentaneheptanoic acid methyl ester, .delta.-lactone, 5-cyclic ethylene acetal, 2.alpha.-(2-carboxy-2-formylethyl)-3.beta.-hydroxy-5-oxo-1.beta.-cyclopentaneheptanoic acid methyl ester, .delta.-lactone, 5-cyclic ethylene acetal, 2.alpha.-(2-carboxy-2-oxoethyl)-3.beta.-hydroxy-5-oxo-1.beta.-cyclopentaneheptanoic acid methyl ester, .delta.-lactone, 5-cyclic ethylene acetal, and 3.beta.-hydroxy-2.alpha.-(3-oxo-1-octenyl)-5-oxo-1.beta.-cyclopentaneheptanoic acid methyl ester, 5-cyclic ethylene acetal.
摘要:
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.-cyclopentaneheptanoic acid methyl ester, .delta.-lactone, 5-cyclic ethylene acetal, 2.alpha.-(2-carboxy-2-formylethyl)-3.beta.-hydroxy-5-oxo-1.beta.-cyclopentaneheptanoic acid methyl ester, .delta.-lactone, 5-cyclic ethylene acetal, 2.alpha.-(2-carboxy-2-oxoethyl)-3.beta.-hydroxy-5-oxo-1.beta.-cyclopentaneheptanoic acid methyl ester, .delta.-lactone, 5-cyclic ethylene acetal, and 3.beta.-hydroxy-2.alpha.-(3-oxo-1-octenyl)-5-oxo-1.beta.-cyclopentaneheptanoic acid methyl ester, 5-cyclic ethylene acetal.
摘要:
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.-cyclopentaneheptanoic acid methyl ester, .delta.-lactone, 5-cyclic ethylene acetal, 2.alpha.-(2-carboxy-2-formylethyl)-3.beta.-hydroxy-5-oxo-1.beta.-cyclopentaneheptanoic acid methyl ester, .delta.-lactone, 5-cyclic ethylene acetal, 2.alpha.-(2-carboxy-2-oxoethyl)-3.beta.-hydroxy-5-oxo-1.beta.-cyclopentaneheptanoic acid methyl ester, .delta.-lactone, 5-cyclic ethylene acetal, and 3.beta.-hydroxy-2.alpha.-(3-oxo-1-octenyl)-5-oxo-1.beta.-cyclopentaneheptanoic acid methyl ester, 5-cyclic ethylene acetal.
摘要:
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.-cyclopentaneheptanoic acid methyl ester, .delta.-lactone, 5-cyclic ethylene acetal, 2.alpha.-(2-carboxy-2-formylethyl)-3.beta.-hydroxy-5-oxo-1.beta.-cyclopentaneheptanoic acid methyl ester, .delta.-lactone, 5-cyclic ethylene acetal, 2.alpha.-(2-carboxy-2-oxoethyl)-3.beta.-hydroxy-5-oxo-1.beta.-cyclopentaneheptanoic acid methyl ester, .delta.-lactone, 5-cyclic ethylene acetal, and 3.beta.-hydroxy-2.alpha.-(3-oxo-1-octenyl)-5-oxo-1.beta.-cyclopentaneheptanoic acid methyl ester, 5-cyclic ethylene acetal.
摘要:
This case relates to the synthesis of novel precursors of prostaglandin E.sub.1, particularly the intermediate 4-hydroxy-3 .alpha.-methyl-1.alpha., 2.alpha.-dilower-alkanoyloxymethylcyclohexene.