Pyridine → HCID 178423843、化合物

HRID 973870ノート

反応式

HRID 973870 の反応式
[C:1]1([C:7]([NH:20][C:21]2[S:22][CH:23]=[C:24](/[C:26](=[N:30]/[O:31][C:32]([C:45]3[CH:50]=[CH:49][CH:48]=[CH:47][CH:46]=3)([C:39]3[CH:44]=[CH:43][CH:42]=[CH:41][CH:40]=3)[C:33]3[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=3)/[C:27]([O-:29])=O)[N:25]=2)([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[Na+].CS(Cl)(=O)=O.[NH2:57][C@@H:58]1[C:89](=[O:90])[N:60]2[C:61]([C:73]([O:75][CH:76]([C:83]3[CH:88]=[CH:87][CH:86]=[CH:85][CH:84]=3)[C:77]3[CH:82]=[CH:81][CH:80]=[CH:79][CH:78]=3)=[O:74])=[C:62](/[CH:65]=[C:66]3\[CH:67]=[C:68]([CH3:72])[C:69](=[O:71])[O:70]\3)[CH2:63][S:64][C@H:59]12.N1C=CC=CC=1>CN(C=O)C.C(OCC)(=O)C>[CH3:72][C:68]1[C:69](=[O:71])[O:70]/[C:66](=[CH:65]/[C:62]2[CH2:63][S:64][C@@H:59]3[C@H:58]([NH:57][C:27](=[O:29])/[C:26](=[N:30]\[O:31][C:32]([C:45]4[CH:46]=[CH:47][CH:48]=[CH:49][CH:50]=4)([C:39]4[CH:40]=[CH:41][CH:42]=[CH:43][CH:44]=4)[C:33]4[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=4)/[C:24]4[N:25]=[C:21]([NH:20][C:7]([C:1]5[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=5)([C:8]5[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=5)[C:14]5[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=5)[S:22][CH:23]=4)[C:89](=[O:90])[N:60]3[C:61]=2[C:73]([O:75][CH:76]([C:77]2[CH:78]=[CH:79][CH:80]=[CH:81][CH:82]=2)[C:83]2[CH:88]=[CH:87][CH:86]=[CH:85][CH:84]=2)=[O:74])/[CH:67]=1

参加物

7

反応物 4

HCID 1049PyridineHCID 31297Methanesulfonyl chlorideHCID 23714200sodium (2Z)-2-[2-(tritylamino)-1,3-thiazol-4-yl]-2-trityloxyiminoacetateHCID 67923953diphenylmethyl 7beta-amino-3-(E-2,5-dihydro-3-methyl-2-oxofuran-5-ylidenemethyl)ceph-3-em-4-carboxylate

生成物 1

HCID 178423843HCID 178423843、化合物収率 39.4%

試薬・触媒・溶媒 2

HCID 6228Dimethylformamide溶媒2 回HCID 8857Ethyl Acetate溶媒

反応条件

温度
-15 °C

実験手順

Sodium 2-(2-triphenylmethylaminothiazol-4-yl)2-Z-triphenylmethoxyiminoacetate (0.832 g), in dry DMF (2 mls) was cooled to ca -50° C. under argon and treated with methanesulphonyl chloride (0.093 mls). The solution was allowed to warm to -15° C. over 30mins and then treated with a solution of diphenylmethyl 7β-amino-3-(E-2,5-dihydro-3-methyl-2-oxofuran-5-ylidenemethyl)ceph-3-em-4-carboxylate (0.474 g) and pyridine (0.096 mls) in DMF (3 mls). The reaction was allowed to warm to room temperature over 1h., diluted with ethyl acetate and washed with water (3×), brine and dried. After removal of solvent, flash chromatography on silica gel eluting with 30, 40% ethyl acetate/hexane, gave the title compound as a foam, (0.444 g, 39%), νmax (CH2Cl2) 3375, 1780 (shoulder), 1760, 1720, 1680 and 1500cm-1 ; δH (CDCl3) 1.88 (3H,s), 3.37 (2H,ABq, J17.6Hz), 5.14 (1H,d,J5.1Hz), 6.10 (1H,dd,J5.1,8.8Hz), 6.44 (1H,s), 6.48 (1H,s) 6.77 (1H,br.s, exch.), 6.98 (1H,s), 7.00 (1H,s) and 7.2-7.4 (40H,m); [mass spectrum: +ve ion (NOBA) MH+, 1128].

後処理

  1. temperatureto warm to room temperature over 1h.
  2. washwashed with water (3×), brine
  3. customdried
  4. customAfter removal of solvent, flash chromatography on silica gel eluting with 30, 40% ethyl acetate/hexane

出典と根拠

ORDレコード
ord-d048aa5349164c9aa466d6dfeb8ca40b
出典データセット
uspto-grants-1991_11
特許番号
US05064649

反応ノート

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