Ammonia → Pivalic acid 6-{2-{[4-(2-amino-2-methylpropoxy)benzyl]ethylamino}-4-methoxyphenyl}-5,6,7,8-tetrahydronaphthalen-2-yl ester

HRID 1433996Notes

Reaction equation

HRID 1433996 reaction equation
C(OC([NH:8][C:9]([CH3:48])([CH3:47])[CH2:10][O:11][C:12]1[CH:46]=[CH:45][C:15]([CH2:16][CH2:17][CH2:18][NH:19][C:20]2[CH:25]=[C:24]([O:26][CH3:27])[CH:23]=[CH:22][C:21]=2[CH:28]2[CH2:37][CH2:36][C:35]3[CH:34]=[C:33]([O:38][C:39](=[O:44])[C:40]([CH3:43])([CH3:42])[CH3:41])[CH:32]=[CH:31][C:30]=3[CH2:29]2)=[CH:14][CH:13]=1)=O)(C)(C)C.FC(F)(F)C(O)=O.O1CCCC1.N>ClCCl>[NH2:8][C:9]([CH3:48])([CH3:47])[CH2:10][O:11][C:12]1[CH:13]=[CH:14][C:15]([CH2:16][CH2:17][CH2:18][NH:19][C:20]2[CH:25]=[C:24]([O:26][CH3:27])[CH:23]=[CH:22][C:21]=2[CH:28]2[CH2:37][CH2:36][C:35]3[CH:34]=[C:33]([O:38][C:39](=[O:44])[C:40]([CH3:41])([CH3:42])[CH3:43])[CH:32]=[CH:31][C:30]=3[CH2:29]2)=[CH:45][CH:46]=1

Participants

6

Reactant 4

HCID 222AmmoniaHCID 6422Trifluoroacetic acidHCID 8028TetrahydrofuranHCID 66627582Pivalic acid 6-{2-{[4-(2-tert-butoxycarbonylamino-2-methylpropoxy)benzyl]ethylamino}-4-methoxyphenyl}-5,6,7,8-tetrahydronaphthalen-2-yl ester

Product 1

HCID 66627097Pivalic acid 6-{2-{[4-(2-amino-2-methylpropoxy)benzyl]ethylamino}-4-methoxyphenyl}-5,6,7,8-tetrahydronaphthalen-2-yl esterYield 94.3%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of pivalic acid 6-{2-{[4-(2-tert-butoxycarbonylamino-2-methylpropoxy)benzyl]ethylamino}-4-methoxyphenyl}-5,6,7,8-tetrahydronaphthalen-2-yl ester (90 mg) in dichloromethane (1.5 ml) was added trifluoroacetic acid (0.2 ml), and the solution was stirred for 1.5 hours at room temperature. The solution was neutralized by sequentially adding tetrahydrofuran and aqueous ammonia, extracted with ethyl acetate, then sequentially washed with water and brine, dried over anhydrous magnesium sulfate, and then the solvent was evaporated in vacuo. The residue was purified by NH silica gel column chromatography (hexane-ethyl acetate system) to provide the title compound (72 mg).

Workup

  1. extractionextracted with ethyl acetate
  2. washsequentially washed with water and brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customthe solvent was evaporated in vacuo
  5. customThe residue was purified by NH silica gel column chromatography (hexane-ethyl acetate system)

Sources & evidence

ORD record
ord-5f79b2c5f5e3447ba839f72c42d53d33
Source dataset
uspto-grants-2009_11
Patent number
US07612114B2

Reaction notes

Loading…