Claims
- 1. A compound of the formula: ##STR11## wherein R" is lower alkyl;
- X.sub.1 is benzyloxycarbonyl or t-butoxycarbonyl; and
- Y is hydrogen, hydroxyl or a group represented by OY.sub.1, wherein Y.sub.1 is a hydroxyl-protecting group selected from the group consisting of methyl, ethyl, benzyl and benzyloxycarbonyl, and wherein the aromatic amino acid part has L-configuration and the 1-amino-2-(4-hydroxyphenyl)ethylphosphonic acid part has negative specific rotation.
- 2. A compound according to claim 1 wherein Y is hydrogen, hydroxyl or benzyloxy.
- 3. A compound according to claim 1 wherein Y.sub.1 is benzyl.
- 4. A compound of the formula: ##STR12## wherein R' is lower alkyl and Z is benzyl.
Priority Claims (1)
Number |
Date |
Country |
Kind |
56-184199 |
Nov 1981 |
JPX |
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Parent Case Info
This application is a continuation of application Ser. No. 697,420 filed Feb. 1, 1985, now abandoned, which is a continuation of application Ser. No. 442,184, filed Nov. 16, 1982, now abandoned.
US Referenced Citations (7)
Foreign Referenced Citations (1)
Number |
Date |
Country |
61172 |
Sep 1982 |
EPX |
Non-Patent Literature Citations (3)
Entry |
Iron et al, "Chem. Absts.", vol. 95, (1981) 181689m. |
Sofer: Biochemical Regulation of Blood Pressure 165:205 (1981). |
Pharm. Soc. of Japan: 7th Symposium on Medicinal Chemistry 21:4 (1985). |
Continuations (2)
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Number |
Date |
Country |
Parent |
697420 |
Feb 1985 |
|
Parent |
442184 |
Nov 1982 |
|