Claims
- 1. An optically active compound of the formula ##STR10## wherein A is NH or O, X and Y are hydrogen atoms, halogen atoms or alkyl groups, R.sub.2 is a phenyl radical, which may be substituted by a member selected from the group consisting of halogen, alkyl having 1 to 3 carbon atoms or alkoxy having 1 to 3 carbon atoms, or a naphthyl radical, and R.sub.3 is an alkyl group or a phenyl radical, but R.sub.2 and R.sub.3 are not the same phenyl radical.
- 2. An optically active compound of the formula ##STR11## wherein A is NH or O, X and Y are hydrogen atoms, halogen atoms or alkyl groups, R.sub.2 is a phenyl radical, which may be substituted by a member selected from the group consisting of halogen, alkyl having 1 to 3 carbon atoms or alkoxy having 1 to 3 carbon atoms, or a naphthyl radical, and R.sub.3 is an alkyl group or a phenyl radical, but R.sub.2 and R.sub.3 are not the same phenyl radical.
Priority Claims (1)
Number |
Date |
Country |
Kind |
63-44644 |
Feb 1988 |
JPX |
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Parent Case Info
This is a division of application Ser. No. 315,877 filed Feb. 27, 1989 now abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
3857856 |
Cairns et al. |
Dec 1974 |
|
3862143 |
Klutchko et al. |
Jan 1975 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
331078 |
Sep 1989 |
EPX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
315877 |
Feb 1989 |
|