Claims
- 1. A D-amino acid amide compound of the formula ##STR419## wherein R.sup.a is methyl, ethyl, isopropyl or n-propyl and
- R.sup.c is a ##STR420## where n.sub.2 and p.sub.2 are each 0 or 1 and when n.sub.2 and p.sub.2 are each zero: R.sup.41 and R.sup.61 are each methyl and X.sub.2 is S, or SO.sub.2,
- when n.sub.2 is zero and p.sub.2 is 1: R.sup.41 and R.sup.61 are each methyl and X.sub.2 is S or SO.sub.2, and
- when n.sub.2 is 1 and p.sub.2 is 1: R.sup.41 and R.sup.61 are each hydrogen and X.sub.2 is S or SO.sub.2.
- 2. A compound according to claim 1 wherein R.sup.a is methyl or ethyl and R.sup.c is 2,2,4,4-tetramethylthietan-3-yl or 2,2,4,4-tetramethyl-1,1-dioxothietan-3-yl.
- 3. A compound according to claim 2 wherein R.sup.1 is methyl.
Parent Case Info
This is a division of application Ser. No. 796,173 filed Nov. 8, 1985 now U.S. Pat. No. 4,804,782, which in turn is a division of application Ser. No. 496,428 filed May 20, 1983 now abandoned, which in turn is a division of application Ser. No 201,745 filed Nov. 5, 1980, now U.S. Pat. No. 4,411,925 issued Oct. 23, 1983, which in turn is a continuation-in-part of application Ser. No. 113,800 filed Jan. 21, 1980, and now abandoned.
US Referenced Citations (5)
Number |
Name |
Date |
Kind |
4272536 |
Inamoto et al. |
Jun 1982 |
|
4277473 |
Inamoto et al. |
Jul 1981 |
|
4454328 |
Brennan et al. |
Jun 1984 |
|
4517379 |
Brennan et al. |
May 1985 |
|
4804782 |
Brennan et al. |
Feb 1989 |
|
Non-Patent Literature Citations (1)
Entry |
"Alkylverschiebungen zwischen sekundaren C-Atomen", Chem. Ber., 113, pp. 104-128 (1980). |
Divisions (3)
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Number |
Date |
Country |
Parent |
796173 |
Nov 1985 |
|
Parent |
496428 |
May 1983 |
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Parent |
201745 |
Nov 1980 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
113800 |
Jan 1980 |
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