Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1988-09-13
1989-12-12
Gerstl, Robert
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
562503, C07C17700
Patent
active
048869031
ABSTRACT:
The present invention provides a process for the production of PGD.sub.2, wherein 7-hydroxy prostaglandin F.sub.2 .alpha. is treated with thiocarbonyl diimidazole or its analog and subjecting thus treated product to the reaction to deoxidize the hydroxyl group at the 7-position, the reaction to convert the hydroxyl group to a protecting group, and the reaction to oxidize the hydroxyl group at the 11-position, thus giving PGD.sub.2 at a high efficiency.
REFERENCES:
patent: 4013695 (1977-03-01), Lin
patent: 4346228 (1982-08-01), Skuballa et al.
Burton et al., J. C. S. Perkins I, p. 1718 (1977).
Lin et al., J. Org. Chem. 47, 615 (1982).
Suzuki et al., "Synthesis of Prostaglandins D.sub.1 and D.sub.2 Via the 3-Component Coupling Process", 25 Tetrahedron Letters 1383-1386 (1984).
Kurozumi Seizi
Noyori Ryoji
Suzuki Masa-aki
Yanagisawa Akira
Gerstl Robert
Teijin Limited
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