申请人:Sterling Drug Inc.
公开号:US03932482A1
公开(公告)日:1976-01-13
Alkyl polyhydro-2-phenanthrylideneacetates are prepared by interacting the corresponding 2-oxopolyhydrophenanthrenes with a tri-lower-alkyl .alpha.-phosphono-lower-alkanoate. Said alkyl polyhydro-2-phenanthrylideneacetates are hydrolyzed to the free acid, and then reesterified via the acid chloride with a tertiary-amino-lower-alkanol to give basic esters having cardiotonic activity.
烷基多羟基-2-菲啰啉乙酸酯是通过将相应的2-氧代多羟基菲啰啉与三个低烷基-α-膦酸低烷酯相互作用制备的。所述的烷基多羟基-2-菲啰啉乙酸酯经水解成为自由酸,然后通过酸氯化物与三级氨基低烷醇重新酯化,得到具有心脏强效作用的碱性酯。