Synthesis of [13C] and [2H] susbstituted methacrylic acid, [13C] and [2H] substituted methyl methacrylate and/or related compounds
申请人:Alvarez A. Marc
公开号:US20070106085A1
公开(公告)日:2007-05-10
The present invention is directed to labeled compounds of the formulae
wherein Q is selected from the group consisting of —S—, —S(═O)—, and —S(═O)
2
—, Z is selected from the group consisting of 1-naphthyl, substituted 1-naphthyl, 2-naphthyl, substituted 2-naphthyl, and phenyl groups with the structure
wherein R
1
, R
2
, R
3
, R
4
and R
5
are each independently selected from the group consisting of hydrogen, a C
1
-C
4
lower alkyl, a halogen, and an amino group selected from the group consisting of NH
2
, NHR and NRR′ where R and R′ are each independently selected from the group consisting of a C
1
-C
4
lower alkyl, an aryl, and an alkoxy group, and X is selected from the group consisting of hydrogen, a C
1
-C
4
lower alkyl group, and a fully-deuterated C
1
-C
4
lower alkyl group. The present invention is also directed to a process of preparing labeled compounds, e.g., process of preparing [
13
C]methacrylic acid by reacting a (CH
3
CH
2
O—
13
C(O)—
13
CH
2
)— aryl sulfone precursor with
13
CHI to form a (CH
3
CH
2
O—
13
C(O)—
13
C(
13
CH
3
)
2
)— aryl sulfone intermediate, and, reacting the (CH
3
CH
2
O—
13
C(O)—
13
C(
13
CH
3
)
2
)— aryl sulfone intermediate with sodium hydroxide, followed by acid to form [
13
C]methacrylic acid. The present invention is further directed to a process of preparing [
2
H
8
]methyl methacrylate by reacting a (HOOC—C(C
2
H
3
)
2
— aryl sulfinyl intermediate with CD
3
I to form a (
2
H
3
COOC—C(C
2
H
3
)
2
)— aryl sulfinyl intermediate, and heating the(
2
H
3
COOC—C(C
2
H
3
)
2
)— aryl sulfinyl intermediate at temperatures and for time sufficient to form [
2
H
8
]methyl methacrylate.
本发明涉及公式的标记化合物,其中Q从所述组中选择,所述组由—S—、—S(═O)—和—S(═O)2—组成,Z从所述组中选择,所述组由1-萘基、取代的1-萘基、2-萘基、取代的2-萘基和苯基与结构的取代物组成,其中R1、R2、R3、R4和R5各自独立地从氢、C1-C4低烷基、卤素和NH2、NHR和NRR'组成的氨基团中选择,其中R和R'各自独立地从C1-C4低烷基、芳基和烷氧基组成的组中选择,X从氢、C1-C4低烷基和全氘代C1-C4低烷基组成的组中选择。本发明还涉及制备标记化合物的方法,例如通过将(CH3CH2O—13C(O)—13CH2)—芳基砜前体与13CHI反应以形成(CH3CH2O—13C(O)—13C(13CH3)2)—芳基砜中间体,并且通过将(CH3CH2O—13C(O)—13C(13CH3)2)—芳基砜中间体与氢氧化钠反应,随后酸化以形成[13C]丙烯酸的制备过程。本发明还涉及制备[2H8]甲基丙烯酸甲酯的方法,通过将(HOOC—C(C2H3)2—芳基亚砜中间体与CD3I反应以形成(2H3COOC—C(C2H3)2)—芳基亚砜中间体,并且在足够温度和时间下加热(2H3COOC—C(C2H3)2)—芳基亚砜中间体以形成[2H8]甲基丙烯酸甲酯。