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Sodium Hydroxide → Adriamycin aglycone

HRID 596935
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HRID 596935 반응식
[CH3:1][C:2]([C@@:4]1([OH:29])[CH2:27][C@H:26]([OH:28])[C:7]2=[C:8]([OH:25])[C:9]3[C:21](=[O:22])[C:20]4[C:15](=[CH:16][CH:17]=[CH:18][C:19]=4[O:23][CH3:24])[C:13](=[O:14])[C:10]=3[C:11]([OH:12])=[C:6]2[CH2:5]1)=[O:3].BrBr.[OH-:32].[Na+]>C(Cl)(Cl)Cl>[CH3:24][O:23][C:19]1[C:20]2[C:21]([C:9]3[C:8]([OH:25])=[C:7]4[C:6]([CH2:5][C@@:4]([OH:29])([C:2]([CH2:1][OH:32])=[O:3])[CH2:27][C@@H:26]4[OH:28])=[C:11]([OH:12])[C:10]=3[C:13](=[O:14])[C:15]=2[CH:16]=[CH:17][CH:18]=1)=[O:22]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 3

HCID 14798Sodium HydroxideHCID 24408BromineHCID 83843(+)-Daunomycinone

생성물 1

HCID 72401Adriamycin aglycone수율 87%

시약·촉매·용매 1

HCID 6212Chloroform용매2회

실험 절차

Daunomycinone (IX) (10 mg, 0.025 mmole) was placed in CHCl3 (1 ml). Br2 (13.5 mg) in CHCl3 (0.25 ml) was added and the solution stirred at 23° for 16 hrs. The solvent was removed and the residue was dissolved in 80% aq acetone (5 ml). NaOH (1.1 mg. 0.028 mmole) was added and the blue solution was refluxed for 5 min when the red color returned. The solution was concentrated to approximately 2 ml, diluted with water (10 ml) and extracted with 50% CHCl3 /MeOH (3 × 10 ml). The extracts were combined, dried and evaporated. The residue was crystallized from CHCl3 -MeOH/pet. ether (30°-60°) to afford 9.0 mg (87%) of (XI): irnujol 2.85 (OH), 5.75 (C = O), 615, 628 μ (chelated quinone); pmr 100 MHz CDCl3 δ 2.0-2.5 (m, 2H, 8-H2), 2.8-3.2 (m, 2H, 10-H2), 3.43 (m, 1H, 9-OH), 4.09 (s, 3H, OMe), 4.70 (d, 2H, J = 16Hz, 14-H2), 5.34 (m, 1H, ∥1/2 = 8Hz, 7-H), 7.38 (dd, 1H, J = 8Hz and J = 1Hz, 3-H), 7.76 (t, 1H, J = 8Hz, 2-H), 8.00 (dd, 1H, J = 8Hz and J = 1Hz, 1-H), 13.24 (s, 1H, 6-OH), 13.99 (s, 1H, 11-OH).

후처리

  1. customThe solvent was removed
  2. dissolutionthe residue was dissolved in 80% aq acetone (5 ml)
  3. temperaturethe blue solution was refluxed for 5 min when the red color
  4. concentrationThe solution was concentrated to approximately 2 ml
  5. additiondiluted with water (10 ml)
  6. extractionextracted with 50% CHCl3 /MeOH (3 × 10 ml)
  7. customdried
  8. customevaporated
  9. customThe residue was crystallized from CHCl3 -MeOH/pet. ether (30°-60°)

출처 및 근거

ORD 기록
ord-9615eb7bd09f4645b7425247cb3d1b96
출처 데이터셋
uspto-grants-1977_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US04012448

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