[EN] AMINO ACID ANALOGUES AND METHODS FOR THEIR SYNTHESIS<br/>[FR] ANALOGUES D'ACIDES AMINÉS ET LEURS PROCÉDÉS DE SYNTHÈSE
申请人:UNIV MONASH
公开号:WO2014005197A1
公开(公告)日:2014-01-09
A method for the synthesis of an amino acid analogue or a salt, solvate, derivative, isomer or tautomer thereof comprising the steps of: (i) subjecting an amino acid containing a metathesisable group to metathesis with a compound containing a complementary metathesisable group of formula (I) or (II): (Formulae (I), (II)) wherein R1 and R2 are independently selected from H and substituted or unsubstituted C1 to C4 alkyl; each R3 is either absent or independently selected from a heteroatom, a substituted or unsubstituted C1 to C20 alkyl, and a substituted or unsubstituted C1 to C20 alkyl group interrupted by one or more heteroatoms; and each X is independently selected from H and an effector molecule; in the presence of a reagent to catalyse the metathesis to form a dicarba bridge between the amino acid containing a metathesisable group and the compound containing a complementary metathesisable group; and (ii) reducing the dicarba bridge to form a saturated dicarba bridge, wherein the reagent used to catalyse step (i) also catalyses step (ii).
AMINO ACID ANALOGUES AND METHODS FOR THEIR SYNTHESIS
申请人:MONASH UNIVERSITY
公开号:US20150148524A1
公开(公告)日:2015-05-28
A method for the synthesis of an amino acid analogue or a salt, solvate, derivative, isomer or tautomer thereof comprising the steps of: (i) subjecting an amino acid containing a metathesisable group to metathesis with a compound containing a complementary metathesisable group of formula (I) or (II): (Formulae (I), (II)) wherein R
1
and R
2
are independently selected from H and substituted or unsubstituted C
1
to C
4
alkyl; each R
3
is either absent or independently selected from a heteroatom, a substituted or unsubstituted C
1
to C
20
alkyl, and a substituted or unsubstituted C
1
to C
20
alkyl group interrupted by one or more heteroatoms; and each X is independently selected from H and an effector molecule; in the presence of a reagent to catalyse the metathesis to form a dicarba bridge between the amino acid containing a metathesisable group and the compound containing a complementary metathesisable group; and (ii) reducing the dicarba bridge to form a saturated dicarba bridge, wherein the reagent used to catalyse step (i) also catalyses step (ii).
Hypervalent Iodine(III)-Mediated Oxidative Fluorination of Alkylsilanes by Fluoride Ions
The first example of a hypervalent iodine(III)‐mediated oxidativefluorination of alkylsilanes by fluorideions without the use of transition metals is demonstrated. This reaction is operationally simple, scalable, and proceeds under mild reaction conditions. Mechanistic studies suggest the involvement of a single‐electron transfer resulting from the interaction of an organopentafluorosilicate and