Claims
- 1. A compound of the formula
- 2. The compound of claim 1, wherein R1 is selected from the group consisting of t-butyl, isopropyl, isobutyl, 1-ethylpropyl, cyclohexyl, 1-ethylpentyl, phenyl, 2,4,6-trimethylphenyl, and ethoxy.
- 3. The compound of claim 1, wherein the compound is 2,2-dimethyl-propionic acid-quinoline-2-carboxylic acid anhydride.
- 4. A compound of the formula
- 5. (S)-2-benzyloxycarbonylamino-propionic acid-2,2-dimethyl-propionic acid anhydride.
- 6. (S)-2-tert.-butoxycarbonylamino-propionic acid-2,2-dimethylpropionic acid anhydride.
Priority Claims (1)
Number |
Date |
Country |
Kind |
96119853.8 |
Dec 1996 |
EP |
|
Parent Case Info
[0001] This application is a divisional of Ser. No. 09/359,294, filed Jul. 22, 1999, which is a continuation of Ser. No. 08/976,800, filed Nov. 24, 1997, now abandoned.
Divisions (1)
|
Number |
Date |
Country |
Parent |
09359294 |
Jul 1999 |
US |
Child |
10008981 |
Dec 2001 |
US |
Continuations (1)
|
Number |
Date |
Country |
Parent |
08976800 |
Nov 1997 |
US |
Child |
10008981 |
Dec 2001 |
US |