40.
    发明专利
    未知

    公开(公告)号:DE4422911A1

    公开(公告)日:1996-01-04

    申请号:DE4422911

    申请日:1994-06-30

    Applicant: HOECHST AG

    Abstract: Cyclic phosphinic acid derivs. of formula (I) are new: A = gp. of formulae (a) or (b); n = 0 or 1; Y, R = O or S; R = H, alkyl, alkenyl, etc.; R , R * = H, NH2, alkyl, etc.; or R +R * = 3-6 membered ring opt. contg. 1-3 heteroatoms, e.g. O or N; G, F = H, F, Cl, Br, OH or R ; but F = H when G = OH; R = H, 1-20C acyl, or OH pro-drug gp.; B = e.g. -C(L)-; L = e.g. O; D, D* = H, 1-20C Alk , R or R -(1-6C Alk ); Alk = satd., mono- or multiply-unsatd. or cyclic alkyl, etc.; R = satd., unsatd. or partly unsatd. 3-35C isocyclic or heterocyclic ring system contg. 3-9 membered rings, etc.; E, E* = H, satd. or unsatd. 1-7C alkyl opt. mono-, di- or tri-substd. by F, Cl, Br or 1-3C alkoxy, etc..

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