Claims
- 1. The compound, Compound IV, having the formula: ##STR11## wherein R.sup.1 is C.sub.1-10 alkyl, --CH.sub.2 R.sup.6 or ##STR12## R.sup.2 is C.sub.1-12 alkoxy; R.sup.6 is C.sub.3-6 cycloalkyl, phenyl or 2-tetrahydrofuryl optionally substituted with a methyl group;
- R.sup.7 is --H or C.sub.1-3 alkyl; and
- R.sup.10 is C.sub.1-10 alkyl.
CROSS-REFERENCE TO RELATED APPLICATION
This application is a division of U.S. application Ser. No. 334,838 filed on Dec. 28, 1981, now U.S. Pat. No. 4,415,736 issued Nov. 15, 1983.
US Referenced Citations (10)
Foreign Referenced Citations (1)
Number |
Date |
Country |
2010806A |
Dec 1978 |
GBX |
Non-Patent Literature Citations (4)
Entry |
Evans et al., J. Am. Chem. Soc. 102:5955 (1980). |
Evans et al., Tetrahedron Letters 23:285 (1982). |
Lewis et al., J. Chem. Soc. (C):1074 (1970). |
Martin et al., Tetrahedron Letters, 3925 (1977). |
Divisions (1)
|
Number |
Date |
Country |
Parent |
334838 |
Dec 1981 |
|