Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2007-02-07
2010-10-12
Dentz, Bernard (Department: 1625)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C560S121000
Reexamination Certificate
active
07812182
ABSTRACT:
Disclosed is a method for preparing a prostaglandin derivative of formula (A):which comprises reacting an aldehyde represented by formula (1):with a 2-oxoalkyl phosphonate in a reaction solvent under the presence of alkali hydroxide as sole base. By carrying out the reaction using an alkali hydroxide as sole base in the reaction system, the desired prostaglandin derivative can be obtained by simple procedures and with high yield.
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Hirata Ryu
Masuzaki Kazuhiro
Matsukawa Tatsuya
Ueno Ryuji
Dentz Bernard
R-Tech Ueno Ltd.
Sucampo AG
Sughrue & Mion, PLLC
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