FLUORINATED CATHARANTHINE DERIVATIVES, THEIR PREPARATION AND THEIR UTILISATION AS VINCA DIMERIC ALKALOID PRECURSORS
申请人:Moisan Lionel
公开号:US20100093997A1
公开(公告)日:2010-04-15
The fluorinated derivatives of catharanthine according to the invention respond to the general formula I:
in which:
the dotted line expresses the possibility of the presence of a double bond when the substitution —X is absent or else a single bond when —X designates a substitution for a group:
H,
OR,
NR′R″,
SR, or
a halogen atom with R, R′ and R″ designating independently of one another a hydrogen atom or a linear or branched alkyl group in C
1
to C
6
,
R
1
, R
2
and R
3
represent independently of one another an atom of hydrogen, of fluorine or a methylated group, on the condition nevertheless that at least one of the radicals R
1
and R
2
represents an atom of fluorine, and
n=1 or 2.