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    • 1. 发明授权
    • Method of obtaining derivatives of
4.beta.-/1'-alken-1'-yl/-2.xi.,5.alpha.-d.alpha..beta.-4,5,6,6.alpha..beta
.
    • 获得4β-/ 1'-链烯-1'-基/ -2xi,5α-二羟基-3,3αβ-4,4,5,6,6α-六氢-2H-环戊二烯( b)呋喃
    • US4707554A
    • 1987-11-17
    • US802702
    • 1985-11-27
    • Barbara AchmatowiczAndrzej R. DaniewskiStanislaw MarczakJacek PankowskiJerzy Wicha
    • Barbara AchmatowiczAndrzej R. DaniewskiStanislaw MarczakJacek PankowskiJerzy Wicha
    • C07D307/935
    • C07D307/935Y02P20/55
    • A new method has been disclosed for obtaining derivatives of 4.beta.-/1'-alken-1'-yl/-2.xi.,5.dbd.-dihydroxy-3,3a.beta.,4,5,6,6a.beta.-hexahydro-2H-cyclopenta [b] furane useful in the synthesis of prostaglandins or their analogs, and a method for obtaining new sulphonyl initial compounds of the general formula 4, in which Z denotes a hydrogen atom or a protective group, Y denotes a group of the formula .dbd.CHOZ.sup.1, in which Z.sup.1 has the meaning stated for Z, whereby protective groups Z and Z.sup.1 may be the same or different, and Ar denotes optionally a substituted aryl group.In the method according to the invention the new sulphonyl derivative of the general formula 4 is alkylated with an electrophilic agent comprising: carbonyl derivatives, oxiranes and halohydrins or their derivatives; the alkylation product is transformed into derivatives of 4.beta.-/1'-alken-1'-yl/-2.xi.,5.alpha.-dihydroxy-3,3a.beta.,4,5,6,6a.beta.-hexahydro-2H-cyclopenta[b] furane in reactions which ensure obtaining a double bond C.sub.13 -C.sub.14.New sulphonyl initial compounds of the general formula 4 are obtained from lactone of the general formula 11, in which Z has the above stated meaning and L.degree. denotes a leaving group, which is transformed into a sulphide; the obtained lactone-sulphide is reduced to lactol, and thereafter lactol-sulphide is oxidized to the sulphonyl derivative.
    • 已经公开了一种新的方法来获得4β-/ 1'-链烯-1'-基/ 2i,5 =二羟基-3,3aβ,4,5,6,6aβ-六氢-2H- 可用于合成前列腺素或其类似物的环戊二烯并[b]呋喃,以及获得通式4的新的磺酰基初始化合物的方法,其中Z表示氢原子或保护基,Y表示式 = CHOZ1,其中Z1具有对Z所定义的含义,由此保护基Z和Z1可以相同或不同,Ar表示任选取代的芳基。 在根据本发明的方法中,通式4的新磺酰基衍生物用亲电子试剂烷基化,包括:羰基衍生物,环氧乙烷和卤代醇或其衍生物; 将烷基化产物转化成4β-/ 1'-链烯-1'-基/ -2xi,5α-二羟基-3,3aβ,4,5,6,6a-六氢-2H-环戊二烯的衍生物 [b]呋喃在确保获得双键C13-C14的反应中。 通式4的新型磺酰基初始化合物由通式11的内酯得到,其中Z具有上述含义,L DEG表示转化成硫化物的离去基团; 将所得内酯硫化物还原成乳糖,然后硫化内脂被氧化成磺酰基衍生物。