PROSTAGLANDINS
    20.
    发明专利

    公开(公告)号:GB2187451A

    公开(公告)日:1987-09-09

    申请号:GB8700836

    申请日:1987-01-15

    Applicant: NAT RES DEV

    Abstract: Novel compounds have the formula (I> represents one of the divalent cyclic groups the letters a and b indicating in each case the points of attachment of the substituents R and CV(R )-NV'R, respectively; R is a group -(CH2)b -(A)a-(CH2)c-B-CH2-CO2R' in which A and B are each separately oxygen or sulphur, a is 0, b is 0 and c is an integer from 3 to 10, or a is 1, b is 0 or an integer from 1 to 7 and c is an integer from 2 to 9 with the sum of b and c being from 2 to 9, and CO2R' is a carboxy group or an amide, ester or salt derivative thereof; V and V' either each separately is hydrogen or together are the second bond of a carbon-nitrogen double bond; R is hydrogen, an aliphatic hydrocarbon group or an aliphatic hydrocarbon group substituted by an aromatic group directly or through an oxygen or sulphur atom; and R is a hydrzino, hydrazono, oximino or oxamino group. The compounds are of value for use in pharmaceutical compositions particularly in the context of the inhibition of thromboxane acitivity. Intermediates of formula IIIa are also claimed:

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