Claims
- 1. A optically active compound of the formula ##STR20## wherein * and *' are asymmetric carbon atoms having the R or S configurations, R' is alkyl of 1 to 3 carbon atoms, and Pro is an amino protecting group.
- 2. A compound according to claim 1, wherein * has the R configuration, and R' is methyl.
- 3. A compound according to claim 2, wherein Pro is t-butoxycarbonyl.
CROSS-REFERENCE TO RELATED APPLICATION
This is a continuation-in-part of U.S. application Ser. No. 621,101 filed Nov. 30, 1990 now U.S. Pat. No. 5,072,001.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4665079 |
Culbertson et al . |
May 1987 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
0207420 |
Jan 1987 |
EPX |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
621101 |
Nov 1990 |
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