Sodium borohydride → [(3S,4S,5R,6S)-3,4,5-tribenzyloxy-6-[4-chloro-3-[[4-(trifluoromethoxy)phenyl]methyl]phenyl]-2-(hydroxymethyl)-6-methoxy-tetrahydropyran-2-yl]methanol

HRID 1913043노트

반응식

HRID 1913043 반응식
[CH2:1]([O:8][C@H:9]1[C@H:14]([O:15][CH2:16][C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)[C@@H:13]([O:23][CH2:24][C:25]2[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=2)[C@@:12]([C:33]2[CH:38]=[CH:37][C:36]([Cl:39])=[C:35]([CH2:40][C:41]3[CH:46]=[CH:45][C:44]([O:47][C:48]([F:51])([F:50])[F:49])=[CH:43][CH:42]=3)[CH:34]=2)([O:31][CH3:32])[O:11][C@:10]1([CH2:54][OH:55])[CH:52]=[O:53])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[BH4-].[Na+]>>[CH2:1]([O:8][C@H:9]1[C@H:14]([O:15][CH2:16][C:17]2[CH:18]=[CH:19][CH:20]=[CH:21][CH:22]=2)[C@@H:13]([O:23][CH2:24][C:25]2[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=2)[C@@:12]([C:33]2[CH:38]=[CH:37][C:36]([Cl:39])=[C:35]([CH2:40][C:41]3[CH:42]=[CH:43][C:44]([O:47][C:48]([F:51])([F:50])[F:49])=[CH:45][CH:46]=3)[CH:34]=2)([O:31][CH3:32])[O:11][C:10]1([CH2:54][OH:55])[CH2:52][OH:53])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

참가 물질

3

반응물 2

HCID 4311764Sodium borohydrideHCID 86685142(2S,3S,4S,5R,6S)-3,4,5-tribenzyloxy-6-[4-chloro-3-[[4-(trifluoromethoxy)phenyl]methyl]phenyl]-2-(hydroxymethyl)-6-methoxy-tetrahydro-pyran-2-carbaldehyde

생성물 1

HCID 86685143[(3S,4S,5R,6S)-3,4,5-tribenzyloxy-6-[4-chloro-3-[[4-(trifluoromethoxy)phenyl]methyl]phenyl]-2-(hydroxymethyl)-6-methoxy-tetrahydropyran-2-yl]methanol수율 31.5%

실험 절차

(2S,3S,4S,5R,6S)-3,4,5-tribenzyloxy-6-[4-chloro-3-[[4-(trifluoromethoxy)phenyl]methyl]phenyl]-2-(hydroxymethyl)-6-methoxy-tetrahydropyran-2-carbaldehyde 6p (1.27 g, 1.63 mmol) was dissolved in 10 mL of mixed solution (THF and MeOH, v:v=1:1) and followed by addition of sodium borohydride (0.12 g, 3.26 mmol) in batch. The reaction mixture was stirred for 1.5 hours. Thereafter, the reaction mixture was concentrated under reduced pressure and was partitioned after 30 mL of ethyl acetate were added. The organic extract was washed with saturated sodium chloride solution (15 mL×2), combined, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated under reduced pressure and the resulting residue was purified by silica gel chromatography with elution system E to obtain the title compound [(3S,4S,5R,6S)-3,4,5-tribenzyloxy-6-[4-chloro-3-[[4-(trifluoromethoxy)phenyl]methyl]phenyl]-2-(hydroxymethyl)-6-methoxy-tetrahydropyran-2-yl]methanol 6q (400 mg, white solid), yield: 31.5%. 1H NMR (400 MHz, CD3OD): δ 7.58 (dd, 1H), 7.54 (d, 1H), 7.39 (d, 1H), 7.31-7.24 (m, 13H), 7.16 (d, 2H), 7.11-7.06 (m, 4H), 4.92 (d, 1H), 4.76 (d, 1H), 4.66-4.59 (m, 1H), 4.27-4.22 (m, 2H), 4.17-4.10 (m, 2H), 4.07-4.04 (m, 3H), 3.99-3.95 (m, 2H), 3.77 (d, 1H), 3.65-3.60 (m, 2H), 3.35 (s, 2H), 3.18 (s, 3H).

후처리

  1. concentrationThereafter, the reaction mixture was concentrated under reduced pressure
  2. customwas partitioned after 30 mL of ethyl acetate
  3. additionwere added
  4. extractionThe organic extract
  5. washwas washed with saturated sodium chloride solution (15 mL×2)
  6. dry with materialdried over anhydrous magnesium sulfate
  7. filtrationfiltered
  8. concentrationThe filtrate was concentrated under reduced pressure
  9. customthe resulting residue was purified by silica gel chromatography with elution system E

출처 및 근거

ORD 기록
ord-706048ddb766431482f98aa5453b9a24
출처 데이터셋
uspto-grants-2013_12
특허 번호
US08609622B2

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