Claims
- 1. Compounds of the formula Ia or Ib ##STR78## wherein R.sub.1 represents an alkyl or cycloalkyl group, R.sub.1 ' represents an alkylidene or cycloalkylidene group corresponding to R.sub.1, R.sub.2 represents hydrogen or an alkyl group and R.sub.3 represents hydrogen or an alkyl group, or R.sub.2 and R.sub.3 conjointly form a 4-membered to 11-membered alkylene, and groups according to the definition which are represented by R.sub.1, R.sub.1 ', R.sub.2 and R.sub.3 can be substituted, but are free from proton-active groups, azide groups and/or groups containing multiple bonds, and R.sub.4 and R.sub.5 independently of one another represent hydrogen or an alkyl group having 1-4 carbon atoms which contains at least one hydrogen atom on the linking C atom, the C number of the substituents R.sub.4 and R.sub.5 on four successive chain members being not more than 5.
- 2. Compounds of the formulae Ia or Ib according to claim 1, wherein R.sub.1 and R.sub.1 ' respectively represent an unsubstituted alkyl or alkylidene group having 1-18 carbon atoms or an unsubstituted cycloalkyl or cycloalkylidene group having 5-8 carbon atoms, R.sub.2 represents hydrogen or an unsubstituted alkyl group having 1-18 carbon atoms, and R.sub.3 represents hydrogen or an unsubstituted alkyl group having 1-18 carbon atoms, the R.sub.4 s each represent hydrogen and the R.sub.5 s independently of one another represent hydrogen or a methyl group, or the R.sub.4 s each represent a methyl group and the R.sub.5 s each represent hydrogen.
- 3. Compounds of the formulae Ia or Ib according to claim 1, wherein R.sub.1 and R.sub.1 ' respectively represent an unsubstituted alkyl or alkylidene group having 1-18 carbon atoms, or an unsubstituted cycloalkyl or cycloalkylidene group having 5-8 carbon atoms, and R.sub.2 and R.sub.3 conjointly form an unsubstituted 4-membered to 11-membered alkylene chain, the R.sub.4 s each represent hydrogen and the R.sub.5 s independently of one another represent hydrogen or a methyl group, or the R.sub.4 s each represent the methyl group and the R.sub.5 s each represent hydrogen.
- 4. Compounds of the formulae Ia or Ib according to claim 1, wherein R.sub.1 and R.sub.1 ' respectively represent an unsubstituted alkyl or alkylidene group having 1-8 carbon atoms, or a cyclohexyl or cyclohexylidene group, R.sub.2 represents hydrogen or an unsubstituted alkyl group having 1-8 carbon atoms, R.sub.3 represents hydrogen, an unsubstituted alkyl group having 1-8 carbon atoms, and the R.sub.4 s and R.sub.5 s each represent hydrogen.
- 5. Compounds of the formula Ia or Ib according to claim 1, wherein R.sub.1 and R.sub.1 ' respectively denote an unsubstituted alkyl or alkylidene group having 1-4 carbon atoms, R.sub.2 denotes hydrogen or a methyl group, R.sub.3 denotes a methyl and the R.sub.4 s and R.sub.5 s each denote hydrogen.
Priority Claims (2)
Number |
Date |
Country |
Kind |
2544/74 |
Feb 1974 |
CHX |
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2518/74 |
Sep 1974 |
CHX |
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Parent Case Info
This is a divisional of Ser. No. 775,654 filed Mar. 3, 1977, now U.S. Pat. No. 4,139,560, which in turn is a divisional of Ser. No. 551,481, filed Feb. 20, 1975, now abandoned.
US Referenced Citations (4)
Number |
Name |
Date |
Kind |
3541154 |
Schmialek et al. |
Nov 1970 |
|
3732282 |
Henrick et al. |
May 1973 |
|
3755411 |
Henrick et al. |
Aug 1973 |
|
3839452 |
Henrick et al. |
Oct 1974 |
|
Non-Patent Literature Citations (6)
Entry |
J. Chem. Soc., 403 (1942). |
J. Chem. Soc., 199-201 (1947). |
Die Pharmazeutische Industrie, 16, 78-79 (1954). |
Lehrbuch der Organischen Chemie, F. Klages, vol. 3, 436 (1958). |
Journal of Documentation, 26, 161-163 (1970). |
JACS, 53, 3045 (1931). |
Divisions (2)
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Number |
Date |
Country |
Parent |
775654 |
Mar 1977 |
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Parent |
551481 |
Feb 1975 |
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