Phosgene → rac-(2S,3S,4S)-2-(3-chloro-phenyl)-3-(4-chloro-2-fluoro-phenyl)-3-cyano-4-(2,2-dimethyl-propyl)-pyrrolidine-1-carboxylic acid ((S)-3,4-dihydroxy-butyl)-amide

HRID 909108노트

반응식

HRID 909108 반응식
[Cl:1][C:2]1[CH:3]=[C:4]([CH:8]2[C:12]([C:15]3[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][C:16]=3[F:22])([C:13]#[N:14])[CH:11]([CH2:23][C:24]([CH3:27])([CH3:26])[CH3:25])[CH2:10][NH:9]2)[CH:5]=[CH:6][CH:7]=1.C(N(CC)CC)C.[C:35](Cl)(Cl)=[O:36].CC1(C)[O:44][C@@H:43]([CH2:45][CH2:46][NH2:47])[CH2:42][O:41]1.CC1C=CC(S([O-])(=O)=O)=CC=1.C1C=C[NH+]=CC=1>C(Cl)Cl.CO>[OH:44][C@H:43]([CH2:42][OH:41])[CH2:45][CH2:46][NH:47][C:35]([N:9]1[CH2:10][CH:11]([CH2:23][C:24]([CH3:27])([CH3:26])[CH3:25])[C:12]([C:15]2[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][C:16]=2[F:22])([C:13]#[N:14])[CH:8]1[C:4]1[CH:5]=[CH:6][CH:7]=[C:2]([Cl:1])[CH:3]=1)=[O:36]

참가 물질

8

반응물 5

HCID 6371PhosgeneHCID 8471TriethylamineHCID 466102Benzenesulfonic acid, 4-methyl-, compd. with pyridine (1:1)HCID 282937772-[(4S)-2,2-dimethyl-1,3-dioxolan-4-yl]ethan-1-amineHCID 67095616rac-(2S,3S,4S)-2-(3-chloro-phenyl)-3-(4-chloro-2-fluoro-phenyl)-4-(2,2-dimethyl-propyl)-pyrrolidine-3-carbonitrile

생성물 1

HCID 86761406rac-(2S,3S,4S)-2-(3-chloro-phenyl)-3-(4-chloro-2-fluoro-phenyl)-3-cyano-4-(2,2-dimethyl-propyl)-pyrrolidine-1-carboxylic acid ((S)-3,4-dihydroxy-butyl)-amide수율 43.8%

시약·촉매·용매 2

HCID 887Methanol용매HCID 6344Dichloromethane용매

실험 절차

To a mixture of rac-(2S,3S,4S)-2-(3-chloro-phenyl)-3-(4-chloro-2-fluoro-phenyl)-4-(2,2-dimethyl-propyl)-pyrrolidine-3-carbonitrile (40.5 mg, 0.10 mmol) and triethylamine (TEA, 20.0 mg, 0.20 mmol) in CH2Cl2 (1 mL) was added phosgene solution (Aldrich, 20% in toluene, 0.12 mL, 0.12 mmol) by injection, and the reaction mixture was stirred at rt for 20 min. 2-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-ethylamine (29.4 mg, 0.20 mmol) was then added. The reaction mixture was stirred at rt for another 30 min then concentrated to give the crude product (checked by LCMS) which was diluted with MeOH and treated with PPTS (cat.) at 120° C. for 5 min with CEM microwave reactor. The reaction mixture was concentrated and diluted with CH2Cl2 and washed with water and brine. The organic phase was separated, filtered and dried over Na2SO4. The mixture was then concentrated and purified by RP-HPLC to give rac-(2S,3S,4S)-2-(3-chloro-phenyl)-3-(4-chloro-2-fluoro-phenyl)-3-cyano-4-(2,2-dimethyl-propyl)-pyrrolidine-1-carboxylic acid ((S)-3,4-dihydroxy-butyl)-amide (23.5 mg, 43.8%, 2 steps) as a white amorphous. HRMS (ES+) m/z Calcd for C27H32Cl2FN3O3+H [(M+H)+]: 536.1878; Found: 536.1879.

후처리

  1. stirringThe reaction mixture was stirred at rt for another 30 min
  2. concentrationthen concentrated
  3. customto give the crude product (checked by LCMS) which
  4. concentrationThe reaction mixture was concentrated
  5. additiondiluted with CH2Cl2
  6. washwashed with water and brine
  7. customThe organic phase was separated
  8. filtrationfiltered
  9. dry with materialdried over Na2SO4
  10. concentrationThe mixture was then concentrated
  11. custompurified by RP-HPLC

출처 및 근거

ORD 기록
ord-2d6bdd92ae6c4915aac848b032c281ee
출처 데이터셋
uspto-grants-2011_09
특허 번호
US08017607B2

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