6-Formyl-4-isopropoxy-[1,5]naphthyridine-3-carbonitrile → 6-(2-amino-4-oxo-4H-thiazol-5-ylidenemethyl)-4-isopropoxy-[1,5]naphthyridine-3-carbonitrile

HRID 968710노트

반응식

HRID 968710 반응식
COC1C=CC(/C=[C:16]2/[C:17]([NH:19][C:20]([S:22]/2)=[NH:21])=[O:18])=CC=1OC1CCCC1.C(O[Na])(C)=O.[CH:28]([C:30]1[N:31]=[C:32]2[C:37](=[CH:38][CH:39]=1)[N:36]=[CH:35][C:34]([C:40]#[N:41])=[C:33]2[O:42][CH:43]([CH3:45])[CH3:44])=O>CC(O)=O>[NH2:21][C:20]1[S:22][C:16](=[CH:28][C:30]2[N:31]=[C:32]3[C:37](=[CH:38][CH:39]=2)[N:36]=[CH:35][C:34]([C:40]#[N:41])=[C:33]3[O:42][CH:43]([CH3:45])[CH3:44])[C:17](=[O:18])[N:19]=1

참가 물질

5

반응물 3

HCID 587243116-Formyl-4-isopropoxy-[1,5]naphthyridine-3-carbonitrileHCID 137629131(5Z)-5-[(3-cyclopentyloxy-4-methoxyphenyl)methylidene]-2-imino-1,3-thiazolidin-4-oneHCID 178418247HCID 178418247, 화합물

생성물 1

HCID 686174026-(2-amino-4-oxo-4H-thiazol-5-ylidenemethyl)-4-isopropoxy-[1,5]naphthyridine-3-carbonitrile수율 22.8%

시약·촉매·용매 1

HCID 176Acetic Acid용매

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온도
90 °C

실험 절차

To a mixture of pseudothiohydantoin (Aldrich, 97%, 23.2 mg, 0.20 mmol), AcONa (160 mg, 1.95 mmol), molecular sieves, and 6-formyl-4-isopropoxy-[1,5]naphthyridine-3-carbonitrile (53.1 mg, 0.22 mmol) (prepared as described below) in a sealed tube was added AcOH (0.3 mL). The reaction mixture was heated to 85-95° C. for 1.5 h. The reaction mixture was then cooled to r.t. and triturated with water. The solid was collected by filtration and washed with water. The solid was then suspended in hot DMF (20 mL) and filtered again. The filtrate was concentrated to give a brown solid: 55.8 mg, which was then purified by Biotage flash column (1%-6% MeOH in CH2Cl2) to give 6-(2-amino-4-oxo-4H-thiazol-5-ylidenemethyl)-4-isopropoxy-[1,5]naphthyridine-3-carbonitrile as a yellowish solid (15.5 mg, 22.8%). HR-ES (+) m/e calcd for C16H13N5O2S (M+H)+ 340.0863. found 340.0863.

후처리

  1. temperatureThe reaction mixture was then cooled to r.t.
  2. customtriturated with water
  3. filtrationThe solid was collected by filtration
  4. washwashed with water
  5. filtrationfiltered again
  6. concentrationThe filtrate was concentrated
  7. customto give a brown solid
  8. custom55.8 mg, which was then purified by Biotage flash column (1%-6% MeOH in CH2Cl2)

출처 및 근거

ORD 기록
ord-b5c492fd923b463e9465f4878bb8c30d
출처 데이터셋
uspto-grants-2007_12
특허 번호
US07304074B2

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