nonproteinogenic amino acids;
total synthesis;
acromelobic acid;
acromelobinic acid;
D O I:
10.1016/S0040-4020(02)00670-1
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
An efficient synthesis of (S)-(-)-acromelobic acid (1) and (S)-(-)-acromelobinic acid (2) is described via asymmetric hydrogenation protocol. Asymmetric hydrogenation of dehydroamino acid derivative 23 using (R,R)-[Rh(DIPAMP)(COD)]BF4 catalyst followed by removal of the protective groups afforded (S)-(-)-acromelobic acid (1) in >98% ee. The key intermediate 23 was prepared from citrazinic acid (8). The dehydroamino acid derivative 33 required for the synthesis of (S)-(-)-2 was prepared from 2,5-lutidine (27), which upon hydrogenation using (S,S)-[Rh(Et-DuPHOS)(COD)]BF4 catalyst afforded (S)-(+)-34 in 93% yield and >96% ee. Removal of protective groups in (S)-(+)-34 afforded (S)-(-)-acromelobinic acid (2) in good overall yield. (C) 2002 Elsevier Science Ltd. All rights reserved.
机构:
F HOFFMANN LA ROCHE & CO LTD,PHARMAZEUT FORSCH ABT,CH-4002 BASEL,SWITZERLANDF HOFFMANN LA ROCHE & CO LTD,PHARMAZEUT FORSCH ABT,CH-4002 BASEL,SWITZERLAND
BUCHSCHACHER, P
CASSAL, JM
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F HOFFMANN LA ROCHE & CO LTD,PHARMAZEUT FORSCH ABT,CH-4002 BASEL,SWITZERLANDF HOFFMANN LA ROCHE & CO LTD,PHARMAZEUT FORSCH ABT,CH-4002 BASEL,SWITZERLAND
CASSAL, JM
FURST, A
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F HOFFMANN LA ROCHE & CO LTD,PHARMAZEUT FORSCH ABT,CH-4002 BASEL,SWITZERLANDF HOFFMANN LA ROCHE & CO LTD,PHARMAZEUT FORSCH ABT,CH-4002 BASEL,SWITZERLAND
FURST, A
MEIER, W
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F HOFFMANN LA ROCHE & CO LTD,PHARMAZEUT FORSCH ABT,CH-4002 BASEL,SWITZERLANDF HOFFMANN LA ROCHE & CO LTD,PHARMAZEUT FORSCH ABT,CH-4002 BASEL,SWITZERLAND
机构:
Stockholm Univ, Arrhenius Lab, Dept Organ Chem, SE-10691 Stockholm, SwedenStockholm Univ, Arrhenius Lab, Dept Organ Chem, SE-10691 Stockholm, Sweden
Ibrahem, Ismail
Sunden, Henrik
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Stockholm Univ, Arrhenius Lab, Dept Organ Chem, SE-10691 Stockholm, SwedenStockholm Univ, Arrhenius Lab, Dept Organ Chem, SE-10691 Stockholm, Sweden
Sunden, Henrik
Dziedzic, Pawel
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Stockholm Univ, Arrhenius Lab, Dept Organ Chem, SE-10691 Stockholm, SwedenStockholm Univ, Arrhenius Lab, Dept Organ Chem, SE-10691 Stockholm, Sweden
Dziedzic, Pawel
Rios, Ramon
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Stockholm Univ, Arrhenius Lab, Dept Organ Chem, SE-10691 Stockholm, SwedenStockholm Univ, Arrhenius Lab, Dept Organ Chem, SE-10691 Stockholm, Sweden
Rios, Ramon
Cordova, Armando
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Stockholm Univ, Arrhenius Lab, Dept Organ Chem, SE-10691 Stockholm, SwedenStockholm Univ, Arrhenius Lab, Dept Organ Chem, SE-10691 Stockholm, Sweden
机构:
Osaka Univ, Int Ctr Biotechnol, Suita, Osaka 5650871, JapanOsaka Univ, Int Ctr Biotechnol, Suita, Osaka 5650871, Japan
Ningsih, Fitria
Kitani, Shigeru
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Osaka Univ, Int Ctr Biotechnol, Suita, Osaka 5650871, JapanOsaka Univ, Int Ctr Biotechnol, Suita, Osaka 5650871, Japan
Kitani, Shigeru
Fukushima, Eriko
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Osaka Univ, Int Ctr Biotechnol, Suita, Osaka 5650871, JapanOsaka Univ, Int Ctr Biotechnol, Suita, Osaka 5650871, Japan
Fukushima, Eriko
Nihira, Takuya
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机构:
Osaka Univ, Int Ctr Biotechnol, Suita, Osaka 5650871, Japan
Mahidol Univ, Fac Sci, MU OU Collaborat Res Ctr Biosci & Biotechnol, Bangkok 10400, ThailandOsaka Univ, Int Ctr Biotechnol, Suita, Osaka 5650871, Japan