Claims
- 1. 2.alpha.-(2-Carboxy-2-oxoethyl)-3.beta.-hydroxy-5-oxo-1.beta.-cyclopentaneheptanoic acid, .delta. -lactone, 5-cyclic ethylene acetal and stereoisomers and loweralkyl, benzyl, or xylyl esters thereof.
- 2. The compound of claim 1 in which the loweralkyl ester is the methyl ester.
- 3. The process for the preparation of the compound of claim 1 which comprises treating the loweralkyl or aralkyl ester of 2.alpha.-(2-carboxy-2-formylethyl)-3.beta.-hydroxy-5-oxo-1.beta.-cyclopentaneheptanoic acid, .delta.-lactone, 5-cyclic ethylene acetal with an excess of ozone.
Parent Case Info
This application is a division of U.S. Ser. No. 435,812, filed Jan. 23, 1974 now U.S. Pat. No. 3,915,994; issued Oct. 28, 1975; which in turn is a division of U.S. Ser. No. 201,979, filed Nov. 24, 1971, now U.S. Pat. No. 3,833,612, issued Sept. 3, 1974.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
3890351 |
Taub |
Jun 1975 |
|
3899525 |
Oda et al. |
Aug 1975 |
|
Non-Patent Literature Citations (1)
Entry |
taub et al, Chem. Communications, pp. 1258-1259 (1970). |
Divisions (2)
|
Number |
Date |
Country |
Parent |
435812 |
Jan 1974 |
|
Parent |
201979 |
Nov 1971 |
|