Claims
- 1. A compound of the formula (IX): ##STR116## wherein R.sub.1 is alkyl of up to 12 carbon atoms, alkenyl of up to 8 carbon atoms, alkynyl of up to 8 carbon atoms, phenyl, benzyl or said alkyl, alkenyl, alkynyl, phenyl or benzyl mono-substituted by lower alkoxyl, lower alkanoyloxy, halogen or nitro, or R.sub.1 is of the formula (a) or (b):
- -CHA.sub.3 -O-CO-A.sub.4 (a) ##STR117## wherein A.sub.3 is hydrogen or methyl; A.sub.4 is lower alkyl, lower alkoxyl, phenyl, phenoxyl, benzyl or benzyloxy, except as R.sub.1 is covered above; A.sub.5 is hydrogen, methyl or methoxyl; and A.sub.6 is hydrogen, methyl or methoxyl; A.sub.2 is hydrogen or a group CR.sub.2 R.sub.3 R.sub.4 wherein R.sub.2 is hydrogen or hydroxyl; R.sub.3 is hydrogen or lower alkyl; R.sub.4 is hydrogen, lower alkyl, benzyl or phenyl, or is joined to R.sub.3 to form part of a carbocyclic ring of 5 to 7 carbon atoms, or A.sub.2 is a group of the formula CH(OH)R.sub.5 or CHX wherein R.sub.5 is hydrogen or lower alkyl, X is oxygen or CR.sub.6 R.sub.7 wherein R.sub.6 is hydrogen, lower alkyl, phenyl, CN, CO.sub.2 R.sub.8 or COR.sub.8 wherein R.sub.8 is lower alkyl, phenyl or benzyl and R.sub.7 is hydrogen or lower alkyl or is joined to R.sub.6 to form part of a carbocyclic ring of 5 to 7 carbon atoms; A.sub.7 is lower alkyl, phenyl or methoxyphenyl; A.sub.8 is lower alkyl, phenyl or methoxyphenyl; and A.sub.9 is lower alkyl, phenyl or methoxyphenyl.
Priority Claims (1)
Number |
Date |
Country |
Kind |
11747/77 |
Mar 1977 |
GBX |
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CROSS-REFERENCE
This is a division of Ser. No. 082,427 filed Oct. 5, 1979 which is a division of Ser. No. 887,844 filed Mar. 17, 1978, now abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4210661 |
Ponsford |
Jul 1980 |
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4223038 |
Smale |
Sep 1980 |
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Non-Patent Literature Citations (1)
Entry |
Onoue et al., Tetrahedron Letters, 1979, 3867. |
Divisions (2)
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Number |
Date |
Country |
Parent |
82427 |
Oct 1979 |
|
Parent |
887844 |
Mar 1978 |
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