Chiral hydrazine derivatives
AssigneeSchering-Plough Corporation
InventorsDavid R. Andrews, Anantha Sudhakar
Life of this patent
Estimating the term…
Abstract
Disclosed are chiral hydrazine derivatives of the formula (Ia), (Ib), (Ic) and (Id) ##STR1## wherein: R.sup.1 and R.sup.2 are independently C.sub.1 -C.sub.10 alkyl; R.sup.3 is H or R.sup.4 wherein R.sup.4 is a hydroxy protecting group; and Z is H, --CHO, --C(O)OC(CH.sub.3).sub.3 or --C(O)OCH.sub.2 C.sub.6 H.sub.5. Also described is a process for preparing chiral hydrazines of the formula (Ia), (Ib), (Ic) and (Id).
Claims3
A compound of the formula ##STR31## wherein R.sup.1 is C.sub.1 -C.sub.4 alkyl, R.sup.2 is C.sub.1 -C.sub.4 alkyl, Z is --CHO or --C(O)OC(CH.sub.3).sub.3, R.sup.3 is H or R.sup.4 and R.sup.4 is benzyl.
Dependencies are inferred from the claim text.