Sodium Hydroxide → (2S)-2-(1-methylcyclobutoxy)-2-[(22S)-4,17,22,28-tetramethyl-21,27-dioxa-1,5,7,8-tetraazahexacyclo[26.2.2.16,9.110,14.02,7.015,20]tetratriaconta-2,4,6(34),8,10(33),11,13,15(20),16,18-decaen-3-yl]acetic acid
反応式
[OH:1][C@@H:2]([C:7]1[C:36]([CH3:37])=[N:35][C:34]2=[CH:38][C:31]3=[N:32][N:33]2[C:8]=1[N:9]1[CH2:43][CH2:42][C:12]([CH3:44])([O:13][CH2:14][CH2:15][CH2:16][CH2:17][C@H:18]([CH3:41])[O:19][C:20]2[CH:21]=[CH:22][C:23]([CH3:40])=[CH:24][C:25]=2[C:26]2[CH:39]=[C:30]3[CH:29]=[CH:28][CH:27]=2)[CH2:11][CH2:10]1)[C:3]([O:5]C)=[O:4].C(O[C:49]1([CH3:53])[CH2:52][CH2:51][CH2:50]1)(=O)C.Cl(O)(=O)(=O)=O.[OH-].[Na+]>C(Cl)Cl.CO>[CH3:53][C:49]1([O:1][C@@H:2]([C:7]2[C:36]([CH3:37])=[N:35][C:34]3=[CH:38][C:31]4=[N:32][N:33]3[C:8]=2[N:9]2[CH2:43][CH2:42][C:12]([CH3:44])([O:13][CH2:14][CH2:15][CH2:16][CH2:17][C@H:18]([CH3:41])[O:19][C:20]3[CH:21]=[CH:22][C:23]([CH3:40])=[CH:24][C:25]=3[C:26]3[CH:39]=[C:30]4[CH:29]=[CH:28][CH:27]=3)[CH2:11][CH2:10]2)[C:3]([OH:5])=[O:4])[CH2:52][CH2:51][CH2:50]1参加物
反応物 4
生成物 1
試薬・触媒・溶媒 2
実験手順
To a stirred solution of methyl (2S)-2-hydroxy-2-[(22S)-4,17,22,28-tetramethyl-21,27-dioxa-1,5,7,8-tetraazahexacyclo[26.2.2.16,9.110,14.02,7.015,20]tetratriaconta-2,4,6(34),8,10(33),11,13,15(20),16,18-decaen-3-yl]acetate (40 mg, 0.067 mmol) in DCM (2 mL) and 1-methylcyclobutyl acetate (599 mg, 4.68 mmol) at rt was added 70 wt % perchloric acid (0.017 mL, 0.200 mmol). After 3 h, the reaction mixture was diluted with DCM (25 mL), carefully quenched with sat. NaHCO3 (5 mL), organic layer separated and washed with brine (10 mL), dried (Na2SO4), filtered and concentrated to give yellow paste. The crude was then tretated with 1N NaOH (0.334 mL, 0.334 mmol) in MeOH (1 mL) at 75° C. for 3 h. Mixture was then cooled and purified by prep HPLC to afford (2S)-2-(1-methylcyclobutoxy)-2-[(22S)-4,17,22,28-tetramethyl-21,27-dioxa-1,5,7,8-tetraazahexacyclo[26.2.2.16,9.110,14.02,7.015,20]tetratriaconta-2,4,6(34),8,10(33),11,13,15(20),16,18-decaen-3-yl]acetic acid (15.8 mg, 0.024 mmol, 36.2% yield). 1H NMR (500 MHz, DMSO-d6) δ 8.52 (s, 1H), 7.91 (d, J=7.9 Hz, 1H), 7.51 (t, J=7.6 Hz, 1H), 7.33 (d, J=7.6 Hz, 1H), 7.17-7.11 (m, 2H), 7.08 (s, 1H), 7.05 (d, J=8.2 Hz, 1H), 5.49 (s, 1H), 4.62 (d, J=5.5 Hz, 1H), 4.45 (t, J=12.2 Hz, 1H), 3.61-3.53 (m, 1H), 3.40-3.20 (m, 7H), 2.83 (d, J=10.4 Hz, 1H), 2.29 (s, 3H), 2.22 (q, J=10.0 Hz, 1H), 2.01-1.86 (m, 4H), 1.82 (br. s., 1H), 1.70-1.62 (m, 5H), 1.58-1.41 (m, 4H), 1.28 (s, 3H), 1.17 (s, 3H), 1.07 (d, J=5.8 Hz, 3H). LCMS (M+H)=653.6.
後処理
- customcarefully quenched with sat. NaHCO3 (5 mL), organic layer
- customseparated
- washwashed with brine (10 mL)
- dry with materialdried (Na2SO4)
- filtrationfiltered
- concentrationconcentrated
- customto give yellow paste
- temperatureMixture was then cooled
- custompurified by prep HPLC
出典と根拠
- ORDレコード
- ord-721b30c6d237473bbb5b039759411668
- 出典データセット
- uspto-grants-2014_12
- 特許番号
- US08906929B2
反応ノート
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