Triethylamine → HCID 86723204, compound

HRID 1050321Notes

Reaction equation

HRID 1050321 reaction equation
Cl.[CH:2]1([C:5]2[N:6]=[CH:7][C:8]([O:11][C@@H:12]3[CH2:22][N:15]4[C:16](=[O:21])[CH2:17][CH2:18][NH:19][CH2:20][C@H:14]4[CH2:13]3)=[N:9][CH:10]=2)[CH2:4][CH2:3]1.C(N(CC)CC)C.[F:30][C:31]([F:42])([F:41])[O:32][C:33]1[CH:40]=[CH:39][C:36]([CH:37]=O)=[CH:35][CH:34]=1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>ClCCl>[CH:2]1([C:5]2[N:6]=[CH:7][C:8]([O:11][C@@H:12]3[CH2:22][N:15]4[C:16](=[O:21])[CH2:17][CH2:18][N:19]([CH2:37][C:36]5[CH:39]=[CH:40][C:33]([O:32][C:31]([F:30])([F:41])[F:42])=[CH:34][CH:35]=5)[CH2:20][C@H:14]4[CH2:13]3)=[N:9][CH:10]=2)[CH2:4][CH2:3]1

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 69573p-(Trifluoromethoxy)benzaldehydeHCID 5049666Sodium triacetoxyborohydrideHCID 86723194HCID 86723194, compound

Product 1

HCID 86723204HCID 86723204, compoundYield 53%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

(8S,9aR)-8-[(5-Cyclopropylpyrazin-2-yl)oxy]octahydro-5H-pyrrolo[1,2-a][1,4]diazepin-5-one hydrochloride (45 mg, 0.139 mmol, prepared as described in Example 46, Part H) was suspended in dichloromethane (1.5 mL) in a 4-mL scintillation vial. Triethylamine (28.0 mg, 0.277 mmol) was added followed by the addition of 4-(trifluoromethoxy)benzaldehyde (34.2 mg, 0.180 mmol) as a solution in dichloromethane (0.2 mL). The resulting solution was stirred at room temperature for 15 minutes, at which point sodium triacetoxyborohydride (70.5 mg, 0.333 mmol) was added as a neat solid in one portion, and the resulting suspension was stirred at room temperature for an additional 4 hours. The suspension was loaded directly onto a 4 g silica column and eluted with ethyl acetate (flow rate=18 mL/minute) over 15 minutes to give the title compound as a colorless oil (34 mg, 53%). 1H NMR (400 MHz, CDCl3) δ ppm 8.02 (d, J=1.2 Hz, 1H), 7.92 (d, J=1.3 Hz, 1H), 7.35 (d, J=8.6 Hz, 2H), 7.17 (d, J=8.0 Hz, 2H), 5.41 (t, J=3.9 Hz, 1H), 4.18 (dd, J=16.4, 9.4 Hz, 1H), 4.02 (dd, J=13.7, 2.0 Hz, 1H), 3.69-3.45 (m, 3H), 2.94 (d, J=12.5 Hz, 2H), 2.81 (d, J=12.0 Hz, 1H), 2.60 (dd, J=14.8, 6.9 Hz, 1H), 2.50-2.34 (m, 2H), 2.15 (dd, J=12.8, 9.3 Hz, 1H), 1.98 (tt, J=7.9, 5.1 Hz, 1H), 1.86 (ddd, J=14.4, 10.4, 4.4 Hz, 1H), 1.02-0.79 (m, 4H); MS (ESI+) m/z 463.1 (M+H)+; [α]D24.1=−0.04 (c=0.23, CH3OH).

Workup

  1. additionwas added as a neat solid in one portion
  2. washeluted with ethyl acetate (flow rate=18 mL/minute) over 15 minutes

Sources & evidence

ORD record
ord-418b3c14b6e546f4b5c9c0af3453b83f
Source dataset
uspto-grants-2016_07
Patent number
US09382258B2

Reaction notes

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