Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1998-10-16
2000-11-14
Kumar, Shailendra
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
549 28, 549 62, 549465, 549475, 556465, 562840, 562843, C07D31500
Patent
active
06147231&
ABSTRACT:
A process for producing a compound of the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and are hydrogen or alkyl, and R is hydrogen or alkyl, which comprises removing the protective group (P) of hydroxyl of a compound of the formula (II): ##STR2## wherein P is a protective group of hydroxyl, .about. indicates an E-isomer, Z-isomer or a mixture thereof, and the other symbols are as defined above; and an intermediate for the production of the compound of the formula (I).
REFERENCES:
patent: 5387714 (1995-02-01), Takase et al.
patent: 5414122 (1995-05-01), Murabayashi et al.
Kai Hiroyuki
Murashi Takami
Takase Akira
Kumar Shailendra
Shionogi & Co. Ltd.
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