Claims
- 1. A compound having the structural formula selected from the group consisting of ##STR315## wherein R.sub.1p, R.sub.2p, R.sub.3p, R.sub.4p and R.sub.5p are either respectively R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 ; R.sub.1, R.sub.2, R.sub.3 and R.sub.5 being individually selected from the group consisting of hydrogen, halogen, hydroxy, alkyl of 1 to 4 carbon atoms optionally substituted with at least one member of the group consisting of halogen, alkoxy of 1 to 4 carbon atoms, alkylthio of 1 to 4 carbons, --NO.sub.2, --CN, --NH.sub.2, mono- and dialkylamino of 1 to 4 carbon atoms, carbamoyl, (alkylamino) carbonyl of 2 to 5 carbon atoms, (dialkylamino) carbonyl of 3 to 9 carbon atoms, carboxy, alkoxycarbonyl of 2 to 5 carbon atoms, acyloxy of 1 to 8 carbon atoms and ##STR316## and Ry are individually hydrogen or alkyl of 1 to 4 carbon atoms and R.sub.4 being selected from the group consisting of --OH and acyloxy of up to 8 carbon atoms, or a corresponding hydroxy or amino protected form of R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5, the wavy line means the substituent can be in the E or Z position with the proviso that when R.sub.3p is --OH or acyloxy of 1 to 8 carbon atoms or a protected form, at least one of R.sub.1p, R.sub.2p and R.sub.5p is other than hydrogen, R.sub.8 is hydrogen or a protective group for --NH.sub.2, R.sub.10 and R.sub.9 are the remainder of an easily clearable ester.
Priority Claims (2)
Number |
Date |
Country |
Kind |
91 15416 |
Dec 1991 |
FRX |
|
92 11520 |
Sep 1992 |
FRX |
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PRIOR APPLICATION
This application is a division of U.S. patent application Ser. No. 08/167,192 filed Dec. 13, 1993, now U.S. Pat. No. 5,587,372, which is a continuation-in-part of U.S. patent application Ser. No. 07/989,235 filed Dec. 11, 1992, now U.S. Pat. No. 5,455,238.
US Referenced Citations (5)
Number |
Name |
Date |
Kind |
5095012 |
Okita et al. |
Mar 1992 |
|
5373001 |
Aszodi et al. |
Dec 1994 |
|
5397779 |
Aszodi et al. |
Mar 1995 |
|
5416080 |
Aszodi et al. |
May 1995 |
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5455238 |
Aszodi et al. |
Oct 1995 |
|
Divisions (1)
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Number |
Date |
Country |
Parent |
167192 |
Dec 1993 |
|
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
989235 |
Dec 1992 |
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