INTERMEDIATES PRODUCED DURING THE PREPARATION OF NEW THYMOPENTIN RETROINVERSO ANALOGS

    公开(公告)号:CA1336738C

    公开(公告)日:1995-08-15

    申请号:CA616330

    申请日:1992-01-13

    Abstract: Intermediates of formulas (V), (VI) and (VII): (V) (VI) (VII) wherein pL represents a protective group of the side-chain amino function, PG is a suitable protecting group of the guanidino function, P is a carboxyl protecting group, R3 may represent a group -OR2 wherein R2 is hydrogen or a hydrocarbyl radical, a group -OP wherein P is a carboxyl protecting group, or a grouping of formula (IV): (IV) wherein P is as defined above, and PI is a protective group of tyrosine hydroxyl function for the preparation of new retro-inverso analogs of thymopentin (TP5) of general formula RNH-gArg-mLys-Asp-R1 where R is hydrogen or an acyl radical, and R1 is an -OR2 group where R2 is as defined above.

Patent Agency Ranking