Claims
- 1. A compound of the formula ##STR17## in which X is --CH.sub.2 --CH.sub.2 -- or --CH.dbd.CH--; R is hydrogen, hydroxyl, or C.sub.1 -C.sub.5 alkoxy; R.sub.1 is hydrogen, hydroxyl, or C.sub.1 -C.sub.5 alkoxy; and R.sub.4 is hydroxyl.
- 2. Compound of claim 1, in which X is --CH.sub.2 --CH.sub.2 --.
- 3. Compound of claim 1, in which X is --CH.dbd.CH--.
CROSS REFERENCE
This application is a divisional of application Ser. No. 148,640, filed May 12, 1980, and now U.S. Pat. No. 4,323,707, which is a division of application Ser. No. 930,639, filed Aug. 3, 1978, now U.S. Pat. No. 4,230,862, which is a continuation of application Ser. No. 761,930, filed Jan. 24, 1977, now abandoned, which is a continuation-in-part of application Ser. No. 724,202, filed Sept. 17, 1976, now abandoned, which is a continuation-in-part of application Ser. No. 625,991, filed Oct. 28, 1975, now abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4017546 |
Suarez et al. |
Apr 1977 |
|
4323707 |
Suarez et al. |
Apr 1982 |
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Divisions (2)
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Number |
Date |
Country |
Parent |
148640 |
May 1980 |
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Parent |
930639 |
Aug 1978 |
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Continuations (1)
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Number |
Date |
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Parent |
761930 |
Jan 1977 |
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Continuation in Parts (2)
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Number |
Date |
Country |
Parent |
724202 |
Sep 1976 |
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Parent |
625991 |
Oct 1975 |
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