Acetic Acid → diphenylmethyl (S)-3-[(2S,3R,4R,5S)-2,3,4,6-tetrahydroxy-5-(L-leucyl)aminohexanoyl]amino-3-phenylpropionate

HRID 2230399노트

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HRID 2230399 반응식
Cl.[OH:2][C@@H:3]([C@H:18]([OH:33])[C@H:19]([OH:32])[C@@H:20]([NH:23][C:24](=[O:31])[C@H:25]([CH2:27][CH:28]([CH3:30])[CH3:29])[NH2:26])[CH2:21][OH:22])[C:4]([NH:6][C@H:7]([C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)[CH2:8][C:9]([OH:11])=[O:10])=[O:5].[C:34]1([C:40]([C:43]2[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=2)=[N+]=[N-])[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=1.C(O)(=O)C>CO>[OH:2][C@@H:3]([C@H:18]([OH:33])[C@H:19]([OH:32])[C@@H:20]([NH:23][C:24](=[O:31])[C@H:25]([CH2:27][CH:28]([CH3:29])[CH3:30])[NH2:26])[CH2:21][OH:22])[C:4]([NH:6][C@H:7]([C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)[CH2:8][C:9]([O:11][CH:40]([C:34]1[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=1)[C:43]1[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=1)=[O:10])=[O:5]

참가 물질

5

반응물 3

HCID 176Acetic AcidHCID 612301,1'-(Diazomethylene)bis(benzene)HCID 69823761(S)-3-[(2S,3R,4R,5S)-2,3,4,6-tetrahydroxy-5-(L-leucyl)aminohexanoyl]amino-3-phenylpropionic acid hydrochloride

생성물 1

HCID 11039599diphenylmethyl (S)-3-[(2S,3R,4R,5S)-2,3,4,6-tetrahydroxy-5-(L-leucyl)aminohexanoyl]amino-3-phenylpropionate수율 88.2%

시약·촉매·용매 1

HCID 887Methanol용매2회

실험 절차

To a solution of (S)-3-[(2S,3R,4R,5S)-2,3,4,6-tetrahydroxy-5-(L-leucyl)aminohexanoyl]amino-3-phenylpropionic acid hydrochloride (1.84 g) in methanol (40 ml) was added a solution of diphenyldiazomethane (1.45 g) in methanol (20 ml) and the mixture was stirred at room temperature for 4 hours. After addition of acetic acid (0.1 ml), the reaction mixture was extracted with ethyl acetate. The extract was washed with aqueous sodium hydrogencarbonate solution and saturated brine respectively and the ethyl acetate solution was dried over anhydrous sodium sulfate. Removal of the organic solvent gave a residue, which was purified by silica gel column chromatography. Elution with ethyl acetate-methnaol (2:1) provided the title compound (2.05 g).

후처리

  1. extractionthe reaction mixture was extracted with ethyl acetate
  2. washThe extract was washed with aqueous sodium hydrogencarbonate solution and saturated brine respectively
  3. dry with materialthe ethyl acetate solution was dried over anhydrous sodium sulfate
  4. customRemoval of the organic solvent
  5. customgave a residue, which
  6. customwas purified by silica gel column chromatography
  7. washElution with ethyl acetate-methnaol (2:1)

출처 및 근거

ORD 기록
ord-4885b49164ca4211882b5fbd7af72d48
출처 데이터셋
uspto-grants-2002_07
특허 번호
US06423869B1

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