Hydrochloric Acid → (2R)-3-[3-bromo-4-(1,1-dioxido-3-oxoisothiazolidin-5-yl)phenyl]-2-[(phenylsulfonyl)-amino]propanoic Acid

HRID 724664노트

반응식

HRID 724664 반응식
FC(F)(F)C(O)=O.[NH2:8][C@@H:9]([CH2:14][C:15]1[CH:20]=[CH:19][C:18]([CH:21]2[S:25](=[O:27])(=[O:26])[NH:24][C:23](=[O:28])[CH2:22]2)=[C:17]([Br:29])[CH:16]=1)[C:10]([O:12]C)=[O:11].C(N(CC)CC)C.[C:37]1([S:43](Cl)(=[O:45])=[O:44])[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=1.[OH-].[Li+].Cl>CO.O>[Br:29][C:17]1[CH:16]=[C:15]([CH2:14][C@@H:9]([NH:8][S:43]([C:37]2[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=2)(=[O:45])=[O:44])[C:10]([OH:12])=[O:11])[CH:20]=[CH:19][C:18]=1[CH:21]1[S:25](=[O:27])(=[O:26])[NH:24][C:23](=[O:28])[CH2:22]1

참가 물질

8

반응물 5

HCID 313Hydrochloric AcidHCID 3939Lithium HydroxideHCID 7369Benzenesulfonyl chlorideHCID 8471TriethylamineHCID 11670631Methyl (2S)-2-amino-3-[3-bromo-4-(1,1-dioxido-3-oxoisothiazolidin-5-yl)phenyl]-propanoate Trifluoroacetate

생성물 1

HCID 69597645(2R)-3-[3-bromo-4-(1,1-dioxido-3-oxoisothiazolidin-5-yl)phenyl]-2-[(phenylsulfonyl)-amino]propanoic Acid수율 70.4%

시약·촉매·용매 2

HCID 887Methanol용매2회HCID 962Water용매

실험 절차

Methyl (2S)-2-amino-3-[3-bromo-4-(1,1-dioxido-3-oxoisothiazolidin-5-yl)-phenyl]-propanoate trifluoroacetate (77.1 mg, 0.152 mmol) in methanol (1.7 mL,) was treated with triethylamine (85.0 μL, 0.610 mmol) and then benzenesulfonyl chloride (29.2 μL, 0.228 mmol). The solution was stirred at rt for 2 h. 4 M lithium hydroxide in water (0.38 mL) was added and stirred for 3 h at rt. The solution was acidified with aqueous 1 N hydrochloric acid solution (4 mL), diluted with methanol (1.5 mL) and purified by preparative LCMS to afford product as a white solid (55.4 mg, 70%). 1H NMR (400 MHz, CD3OD): δ 7.65–7.62 (m, 2H), 7.53–7.36 (m, 4H), 7.25–7.20 (m, 1H), 5.65 (t, J=6.8 Hz, 1H), 4.06–5.01 (m, 1H), 3.48 (dd, J=16.2, 8.0 Hz, 1H), 3.38–3.28 (m, 1H), 3.11–3.06 (m, 1H), 2.87–2.83 (m, 1H); LCMS found for C18H18BrN2O7S2 (M+H)+: m/z=517.

후처리

  1. stirringstirred for 3 h at rt
  2. custompurified by preparative LCMS

출처 및 근거

ORD 기록
ord-fd98c279e8074310afce4367d104a61a
출처 데이터셋
uspto-grants-2006_11
특허 번호
US07141596B2

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