Iodine → (S)-methyl 2-((tert-butoxycarbonyl)amino)-3-(4-(2-(4-(heptyloxy)phenyl)thiazol-4-yl)phenyl)propanoate

HRID 1775818노트

반응식

HRID 1775818 반응식
II.[C:3]([O:7][C:8]([NH:10][C@@H:11]([CH2:16]I)[C:12]([O:14][CH3:15])=[O:13])=[O:9])([CH3:6])([CH3:5])[CH3:4].Br[C:19]1[CH:24]=[CH:23][C:22]([C:25]2[N:26]=[C:27]([C:30]3[CH:35]=[CH:34][C:33]([O:36][CH2:37][CH2:38][CH2:39][CH2:40][CH2:41][CH2:42][CH3:43])=[CH:32][CH:31]=3)[S:28][CH:29]=2)=[CH:21][CH:20]=1.C(Cl)Cl>CN(C=O)C.[Zn].C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].C1(P(C2CCCCC2)C2C=CC=CC=2C2C(OC)=CC=CC=2OC)CCCCC1>[C:3]([O:7][C:8]([NH:10][C@@H:11]([CH2:16][C:19]1[CH:20]=[CH:21][C:22]([C:25]2[N:26]=[C:27]([C:30]3[CH:31]=[CH:32][C:33]([O:36][CH2:37][CH2:38][CH2:39][CH2:40][CH2:41][CH2:42][CH3:43])=[CH:34][CH:35]=3)[S:28][CH:29]=2)=[CH:23][CH:24]=1)[C:12]([O:14][CH3:15])=[O:13])=[O:9])([CH3:6])([CH3:5])[CH3:4]

참가 물질

9

반응물 4

HCID 807Iodine2회HCID 6344DichloromethaneHCID 10903591methyl (2R)-2-(((tert-butoxy)carbonyl)amino)-3-iodopropanoateHCID 86689666HCID 86689666, 화합물

생성물 1

HCID 86689667(S)-methyl 2-((tert-butoxycarbonyl)amino)-3-(4-(2-(4-(heptyloxy)phenyl)thiazol-4-yl)phenyl)propanoate수율 84%

시약·촉매·용매 4

HCID 23994Zinc촉매HCID 9811564Bis(dibenzylideneacetone)palladium촉매HCID 112698722-Dicyclohexylphosphino-2',6'-dimethoxybiphenyl촉매HCID 6228Dimethylformamide용매2회

반응 조건

온도
50 °C

실험 절차

To a stirring mixture of zinc (182 mg, 2.79 mmol) in DMF (2 mL) was added diiodine (35.4 mg, 0.14 mmol). When the color was discharged, further diiodine (35.4 mg, 0.14 mmol) and (R)-methyl 2-((tert-butoxycarbonyl)amino)-3-iodopropanoate (306 mg, 0.93 mmol) were added. After 30 min, DMF (1 mL) was added and the mixture de-gassed by bubbling through N2. To the reaction mixture were added 4-(4-bromophenyl)-2-(4-(heptyloxy)phenyl)thiazole (400 mg, 0.93 mmol), Pd2dba3 (21 mg, 0.02 mmol) and dicyclohexyl(2′,6′-dimethoxy-[1,1′-biphenyl]-2-yl)phosphine (19 mg, 0.05 mmol), the mixture was further de-gassed then heated to 50° C. for 3 h. The reaction mixture was cooled and purified by column chromatography (10-80% EA in iso-hexanes). The product obtained was taken into DCM (4 mL) and washed with water (20 mL) and dried through a hydrophobic frit. The organics were suspended in ACN (4 mL) and concentrated to afford 432 mg (83%) of (S)-methyl 2-((tert-butoxycarbonyl)amino)-3-(4-(2-(4-(heptyloxy)phenyl)thiazol-4-yl)phenyl)propanoate as a yellow foam. LCMS-ESI (m/z) calculated for C31H40N2O5S: 552.7; no ion observed, tR=3.36 min. (Method 4).

후처리

  1. customthe mixture de-gassed
  2. customby bubbling through N2
  3. customthe mixture was further de-gassed
  4. temperatureThe reaction mixture was cooled
  5. custompurified by column chromatography (10-80% EA in iso-hexanes)
  6. customThe product obtained
  7. washwashed with water (20 mL)
  8. customdried through a hydrophobic frit
  9. concentrationconcentrated

출처 및 근거

ORD 기록
ord-d3f932ef2c8a45b8b417d5ed5eccfe96
출처 데이터셋
uspto-grants-2016_02
특허 번호
US09260427B2

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