Claims
- 1. A method of preparing the compound of the formula ##STR7## which comprises hydrolyzing the compound of the formula ##STR8## under an acidic condition to afford said compound.
Parent Case Info
This is a division of prior application Ser. No. 300,878, filed Jan. 25, 1989, now U.S. Pat. No. 4,897,496, which is a division of application Ser. No. 147,427, filed Jan. 25, 1988, now U.S. Pat. No. 4,822,896, which is a division of application Ser. No. 846,550,filed Mar. 31, 1986, now U.S. Pat. No. 4,734,513.
US Referenced Citations (5)
Number |
Name |
Date |
Kind |
4134986 |
Bajwa et al. |
Jan 1979 |
|
4517200 |
Kreutner et al. |
May 1985 |
|
4564626 |
Kreutner et al. |
Jan 1986 |
|
4639443 |
Kosley, Jr. et al. |
Jan 1987 |
|
4734513 |
Hrib |
Mar 1988 |
|
Non-Patent Literature Citations (4)
Entry |
Ercoli et al., JACS, 75, 650-653, (1963). |
Anderson et al., JACS, 76, 743-746, (1954). |
Hassner et al., J. Org. Chem., 40, 3427-3429, (1974). |
Vedets, JACS, 96, 5944-5946, (1974). |
Divisions (3)
|
Number |
Date |
Country |
Parent |
300878 |
Jan 1989 |
|
Parent |
147427 |
Jan 1988 |
|
Parent |
846550 |
Mar 1986 |
|