Claims
- 1. A chemical compound of the formula: ##EQU1## wherein: R is straight or branched chain lower alkyl of from 1 to 5 carbon atoms;
- R.sub.1 is branched chain lower alkyl of from 3 to 5 carbon atoms, cycloalkyl or cycloalkylmethyl, the cycloalkyl moiety having from 3 to 6 carbon atoms, or ##EQU2## R.sub.2 is hydrogen, methyl or ethyl; R.sub.3 and R.sub.4 are hydrogen, hydroxy or methoxy, and R.sub.5 is hydrogen or methyl.
- 2. A chemical compound according to claim 1 in which R is methyl.
- 3. A chemical compound according to claim 2 in which R.sub.2 is hydrogen.
- 4. A chemical compound according to claim 3 in which R.sub.1 is t-butyl.
- 5. A chemical compound according to claim 3 in which R.sub.1 is cyclopentyl.
- 6. A chemical compound according to claim 1 in which R is ethyl and R.sub.2 is hydrogen.
- 7. A chemical compound according to claim 2 in which R.sub.1 is isopropyl and R.sub.2 is hydrogen.
- 8. A chemical compound according to claim 2 in which R.sub.2 is methyl or ethyl.
- 9. A chemical compound according to claim 8 in which R.sub.2 is ethyl and R.sub.1 is t-butyl.
- 10. A chemical compound according to claim 8 in which R.sub.2 is methyl and R.sub.1 is tertiary butyl.
Parent Case Info
This is a division of application Ser. No. 359,063, filed May 10, 1973 and now U.S. Pat. No. 3,917,704, which is a continuation-in-part of Ser. No. 236,177, filed Mar. 20, 1972, now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
3869474 |
Miura et al. |
Mar 1975 |
|
Divisions (1)
|
Number |
Date |
Country |
Parent |
359063 |
May 1973 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
236177 |
Mar 1972 |
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