PREPARATION OF N-SUBSTITUTED 2,7-DIALKYL-4-HYDROXY-5-AMINO-8-ARYL-OCTANOYL AMIDES
申请人:Herold Peter
公开号:US20060041169A1
公开(公告)日:2006-02-23
From compounds of formula II
wherein R
1
and R
2
are independently of one another H, C
1
-C
6
alkyl, C
1
-C
6
halogenalkyl, C
1
-C
6
alkoxy, C
1
-C
6
alkoxy-C
1
-C
6
alkyl, or C
1
-C
6
alkoxy-C
1
-C
6
alkyloxy, R
3
is C
1
-C
6
alkyl, and R
5
is C
1
-C
6
alkyl, C
1
-C
6
hydroxyalkyl, C
1
-C
6
alkoxy-C
1
-C
6
-alkyl, C
1
-C
6
alkanoyloxy-C
1
-C
6
alkyl, C
1
-C
6
aminoalkyl, C
1
-C
6
alkylamino-C
1
-C
6
-alkyl, C
1
-C
6
-dialkylamino-C
1
-C
6
-alkyl, C
1
-C
6
-alkanoylamido-C
1
-C
6
-alkyl, HO(O)C—C
1
-C
6
-alkyl, C
1
-C
6
alkyl-O—(O)C—C
1
-C
6
alkyl, H
2
N—C(O)—C
1
-C
6
alkyl, C
1
-C
6
alkyl-HN—C(O)—C
1
-C
6
alkyl or (C
1
-C
6
alkyl)
2
N—C(O)—C
1
-C
6
-alkyl, R
6
is C
1
-C
6
alkyl, R
7
is C
1
-C
6
alkyl or C
1
-C
6
alkoxy, or R
6
and R
7
together are tetramethylene, pentamethylene, 3-oxa-1,5-pentylene or —CH
2
CH
2
O— substituted, if necessary, with C
1
-C
4
-Alkyl, phenyl or benzyl, it is possible—through halolactonization, azidation of the halogen group, ring opening with an amine R
5
—NH
2
, and reduction of the azide group to form the amino group—to prepare compounds of formula I
wherein R
5
is C
1
-C
6
alkyl, C
1
-C
6
hydroxyalkyl, C
1
-C
6
alkoxy-C
1
-C
6
alkyl, C
1
-C
6
alkanoyloxy-C
1
-C
6
alkyl, C
1
-C
6
aminoalkyl, C
1
-C
6
alkylamino-C
1
-C
6
alkyl, C
1
-C
6
dialkylamino-C
1
-C
6
alkanoylamido-C
1
-C
6
alkyl, HO(O)C—C
1
-C
6
alkyl, C
1
-C
6
alkyl-O—(O)C—C
1
-C
6
alkyl, H
2
N—C(O)—C
1
-C
6
alkyl, C
1
-C
6
alkyl-HN—C(O)—C
1
-C
6
alkyl or (C
1
-C
6
alkyl)
2
—N—C(O)—C
1
-C
6
alkyl. If 2(S),7(R)-diastereomer of formula II is used, the 2(S),4(S),5(S),7(S)-diastereomer of formula Ia
is obtained in a high degree of purity.
从公式II的化合物中,其中R1和R2分别是H、C1-C6烷基、C1-C6卤代烷基、C1-C6烷氧基、C1-C6烷氧基-C1-C6烷基、或C1-C6烷氧基-C1-C6烷氧基,R3是C1-C6烷基,R5是C1-C6烷基、C1-C6羟基烷基、C1-C6烷氧基-C1-C6-烷基、C1-C6酰氧基-C1-C6烷基、C1-C6氨基烷基、C1-C6烷基氨基-C1-C6烷基、C1-C6二烷基氨基-C1-C6-烷基、C1-C6-酰胺基-C1-C6-烷基、HO(O)C—C1-C6-烷基、C1-C6烷氧基-O—(O)C—C1-C6-烷基、H2N—C(O)—C1-C6-烷基、C1-C6烷基-HN—C(O)—C1-C6-烷基或(C1-C6烷基)2N—C(O)—C1-C6-烷基,R6是C1-C6烷基,R7是C1-C6烷基或C1-C6烷氧基,或R6和R7一起是四亚甲基、五亚甲基、3-氧代-1,5-戊二烯或-CH2CH2O-取代,必要时用C1-C4烷基、苯基或苄基取代,可以通过卤代内酯化、卤素基的氮化、胺R5—NH2的环开放和氮化物基的还原形成氨基基团来制备公式I的化合物,其中R5是C1-C6烷基、C1-C6羟基烷基、C1-C6烷氧基-C1-C6烷基、C1-C6酰氧基-C1-C6烷基、C1-C6氨基烷基、C1-C6烷基氨基-C1-C6烷基、C1-C6二烷基氨基-C1-C6-烷基、C1-C6-酰胺基-C1-C6-烷基、HO(O)C—C1-C6-烷基、C1-C6烷氧基-O—(O)C—C1-C6-烷基、H2N—C(O)—C1-C6-烷基、C1-C6烷基-HN—C(O)—C1-C6-烷基或(C1-C6烷基)2—N—C(O)—C1-C6-烷基。如果使用公式II的2(S),7(R)-对映异构体,则可以获得公式I的2(S),4(S),5(S),7(S)-对映异构体,其纯度高。