Piperazin-2-one → 1-{(R*)-(4-chlorophenyl)[4-(piperazin-2-on-4-ylmethyl)phenyl]methyl}-3-[(3,5-difluorophenyl)(methylsulfonyl)methylene]azetidine

HRID 25202

반응식

HRID 25202 반응식
Cl[CH2:2][C:3]1[CH:8]=[CH:7][C:6]([C@H:9]([C:27]2[CH:32]=[CH:31][C:30]([Cl:33])=[CH:29][CH:28]=2)[N:10]2[CH2:13][C:12](=[C:14]([C:19]3[CH:24]=[C:23]([F:25])[CH:22]=[C:21]([F:26])[CH:20]=3)[S:15]([CH3:18])(=[O:17])=[O:16])[CH2:11]2)=[CH:5][CH:4]=1.[NH:34]1[CH2:39][CH2:38][NH:37][CH2:36][C:35]1=[O:40]>ClCCl>[Cl:33][C:30]1[CH:29]=[CH:28][C:27]([C@@H:9]([C:6]2[CH:5]=[CH:4][C:3]([CH2:2][N:37]3[CH2:38][CH2:39][NH:34][C:35](=[O:40])[CH2:36]3)=[CH:8][CH:7]=2)[N:10]2[CH2:13][C:12](=[C:14]([C:19]3[CH:24]=[C:23]([F:25])[CH:22]=[C:21]([F:26])[CH:20]=3)[S:15]([CH3:18])(=[O:17])=[O:16])[CH2:11]2)=[CH:32][CH:31]=1

참가 물질

4

반응물 2

HCID 231360Piperazin-2-oneHCID 685858541-{(R)-[4-(chloromethyl)phenyl](4-chlorophenyl)methyl}-3-[(3,5-difluorophenyl)(methylsulfonyl)methylene]azetidine

생성물 1

HCID 101446401-{(R*)-(4-chlorophenyl)[4-(piperazin-2-on-4-ylmethyl)phenyl]methyl}-3-[(3,5-difluorophenyl)(methylsulfonyl)methylene]azetidine수율 39.1%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

반응 조건

온도
20 °C

실험 절차

The operation is carried out as described in Example 87, but by stirring the reaction mixture for 4 days at 20° C., starting with 0.05 g of 1-{(R*)-[4-(chloromethyl)phenyl](4-chlorophenyl)methyl}-3-[(3,5-difluorophenyl)(methylsulfonyl)methylene]azetidine, form A isomer, 1.0 cm3 of dichloromethane, and 0.024 g of piperazin-2-one. The crude product is chromatographed on a silica gel column (particle size 0.06-0.200 mm, diameter 8 mm, height 8 cm), eluting with 80 cm3 of dichloromethane and then with a dichloromethane and methanol mixture (95/5 by volume), collecting 2.5 cm3 fractions immediately after using this eluent mixture. Fractions 3 to 8 are combined and then concentrated to dryness under reduced pressure (2.7 kPa). 0.022 g of 1-{(R*)-(4-chlorophenyl)[4-(piperazin-2-on-4-ylmethyl)phenyl]methyl}-3-[(3,5-difluorophenyl)(methylsulfonyl)methylene]azetidine, form A isomer, is obtained in the form of a white foam [1H NMR spectrum (400 MHz, CDCl3, δ in ppm) 2.62 (t, J=5.5 Hz, 2H), 2.80 (s, 3H), 3.11 (s, 2H), 3.34 (mt, 2H), 3.51 (s, 2H), 3.85 (mt, 2H), 4.34 (mt, 2H), 4.51 (s, 1H), 5.76 (unresolved complex, 1H), 6.84 (broad t, JHF=9 Hz, 1H), 6.98 (mt, 2H) from 7.20 to 7.40 (mt, 8H)].

후처리

  1. customThe crude product is chromatographed on a silica gel column (particle size 0.06-0.200 mm, diameter 8 mm, height 8 cm)
  2. washeluting with 80 cm3 of dichloromethane
  3. customwith a dichloromethane and methanol mixture (95/5 by volume), collecting 2.5 cm3 fractions immediately
  4. concentrationconcentrated to dryness under reduced pressure (2.7 kPa)

출처 및 근거

ORD 기록
ord-e15b4808db8e413cbe9d39012ab74f96
출처 데이터셋
uspto-grants-2005_02
특허 번호
US06858603B2

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