Dicyclohexylcarbodiimide → (3S-trans)-3-[[[[(4-Ethyl-2,3-dioxo-1-piperazinyl)carbonyl]amino]phenylacetyl]amino]-4-methyl-1-(phenylmethoxy)-2-azetidinone

HRID 1156738

반응식

HRID 1156738 반응식
[CH2:1]([N:3]1[CH2:8][CH2:7][N:6]([C:9]([NH:11][CH:12]([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)[C:13]([OH:15])=O)=[O:10])[C:5](=[O:22])[C:4]1=[O:23])[CH3:2].C1(N=C=NC2CCCCC2)CCCCC1.[NH2:39][C@H:40]1[C@H:43]([CH3:44])[N:42]([O:45][CH2:46][C:47]2[CH:52]=[CH:51][CH:50]=[CH:49][CH:48]=2)[C:41]1=[O:53].C1(C)C(S([O-])(=O)=O)=CC=CC=1.C(N(C(C)C)CC)(C)C>CN(C)C=O.O>[CH2:1]([N:3]1[CH2:8][CH2:7][N:6]([C:9]([NH:11][CH:12]([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)[C:13]([NH:39][C@H:40]2[C@H:43]([CH3:44])[N:42]([O:45][CH2:46][C:47]3[CH:48]=[CH:49][CH:50]=[CH:51][CH:52]=3)[C:41]2=[O:53])=[O:15])=[O:10])[C:5](=[O:22])[C:4]1=[O:23])[CH3:2]

참가 물질

8

반응물 5

HCID 10868DicyclohexylcarbodiimideHCID 81531DiisopropylethylamineHCID 3424274ToluenesulfonateHCID 4550893(R)-(-)-alpha-[[(4-Ethyl-2,3-dioxo-1-piperazinyl)carbonyl]amino]benzeneacetic acidHCID 13036842(3S-trans)-3-amino-4-methyl-1-(phenylmethoxy)-2-azetidinone

생성물 1

HCID 13036845(3S-trans)-3-[[[[(4-Ethyl-2,3-dioxo-1-piperazinyl)carbonyl]amino]phenylacetyl]amino]-4-methyl-1-(phenylmethoxy)-2-azetidinone

시약·촉매·용매 2

HCID 962Water용매HCID 6228Dimethylformamide용매2회

실험 절차

A suspension of α-[[(4-ethyl-2,3-dioxo-1-piperazinyl)carbonyl]amino]benzeneacetic acid (0.879 g) hydroxybenzotriazole (0.42 g), and dicyclohexylcarbodiimide (0.56 g), in dimethylformamide (15 ml) is stirred at 26° C. for one hour, at which point a solution of (3S-trans)-3-amino-4-methyl-1-(phenylmethoxy)-2-azetidinone, toluenesulfonate (0.95 g) and diisopropylethylamine (0.44 ml) in dimethylformamide (5 ml) is added. The reaction mixture is stirred at room temperature for about 16 hours, then poured into water (100 ml) and extracted with ethyl acetate (three 100 ml portions). The combined organic extracts are washed with water (three 100 ml portions) and aqueous sodium bicarbonate solution (one 100 ml portion), then dried over sodium sulfate and concentrated under reduced pressure to a semi-solid residue. Liquid chromatography (ethyl acetate) affords the desired product as a foam (0.599 g). Recrystallization from chloroform/isopropyl ether yields the title compound, melting point 100°-105° C.

후처리

  1. additionis added
  2. extractionextracted with ethyl acetate (three 100 ml portions)
  3. washThe combined organic extracts are washed with water (three 100 ml portions) and aqueous sodium bicarbonate solution (one 100 ml portion)
  4. dry with materialdried over sodium sulfate
  5. concentrationconcentrated under reduced pressure to a semi-solid residue

출처 및 근거

ORD 기록
ord-f18a8de656c042deb92a64063d2ef442
출처 데이터셋
uspto-grants-1982_06
특허 번호
US04337197

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