Ammonia → HCID 15126104, compound
Reaction equation
[Si:1]([O:18][CH2:19][C@H:20]1[S:24][CH:23]([N:25]2[CH:33]=[N:32][C:31]3[C:26]2=[N:27][C:28]([Cl:35])=[N:29][C:30]=3Cl)[CH2:22][CH2:21]1)([C:14]([CH3:17])([CH3:16])[CH3:15])([C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[NH3:36]>>[Si:1]([O:18][CH2:19][C@H:20]1[S:24][CH:23]([N:25]2[CH:33]=[N:32][C:31]3[C:26]2=[N:27][C:28]([Cl:35])=[N:29][C:30]=3[NH2:36])[CH2:22][CH2:21]1)([C:14]([CH3:15])([CH3:17])[CH3:16])([C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1)[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1Participants
3
Conditions
- Temperature
- 50 °C
Procedure
A mixture of 12 (150 mg) and saturated ethanolic ammonia (50 mL) was heated at 50° C. in a glass-lined stainless steel pressure vessel for 48 hours. The reaction mixture was evaporated to dryness to afford a syrup which was purified on two silica gel thick plates (Analtech, GF, 1000 μm) that were developed in 99:1 CHCl3 -MeOH. The product was eluted with CHCl3 and evaporated. The residue was crystallized from EtOAc-cyclohexane to give pure 15 (125 mg, 86%); mp. 123°-125° C.; FAB MS 524 (M+H)+ ; 1H NMR (CDCl3) δ 8.14 (s, 1, H-8), 7.72 (m, 4, ArH), 7.42 (m, 6, ArH), 6.02 (brs, 2, NH2), 6.16 (m, 1'-H), 3.93 (m, 1, 5'-H), 3.84 (m, 1, 5'-H), 3.73 (m, 1, 4'-H), 2.36 (m, 2, 2'-H), 2.18 (m, 1, 3'-H), 1.90 (m, 1, 3'-H), 1.1 (s, 9, t-butyl).
Workup
- customThe reaction mixture was evaporated to dryness
- customto afford a syrup which
- customwas purified on two silica gel thick plates (Analtech, GF, 1000 μm) that
- washThe product was eluted with CHCl3
- customevaporated
- customThe residue was crystallized from EtOAc-cyclohexane
Sources & evidence
- ORD record
- ord-cbef320397ec40feb23e140562e1f47d
- Source dataset
- uspto-grants-1992_07
- Patent number
- US05128458
Reaction notes
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