Acetaldehyde → tert-butyl N-[4-[[[(6S)-3-(diethylamino)-4-oxo-7,8-dihydro-6H-pyrrolo[1,2-a]pyrimidine-6-carbonyl]amino]methyl]benzenecarboximidoyl]carbamate

HRID 10958Notes

Reaction equation

HRID 10958 reaction equation
[C:1]([O:5][C:6](=[O:38])[NH:7][C:8]([C:10]1[CH:15]=[CH:14][C:13]([CH2:16][NH:17][C:18]([C@H:20]2[N:24]3[C:25](=[O:37])[C:26]([NH:29][CH2:30][C:31]4C=CC=CC=4)=[CH:27][N:28]=[C:23]3[CH2:22][CH2:21]2)=[O:19])=[CH:12][CH:11]=1)=[NH:9])([CH3:4])([CH3:3])[CH3:2].[C:39](OC(=O)NC(C1C=CC(CNC([C@H]2N3C(=O)C(N)=CN=C3CC2)=O)=CC=1)=N)(C)(C)[CH3:40].C(=O)C.[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+]>>[C:1]([O:5][C:6](=[O:38])[NH:7][C:8]([C:10]1[CH:11]=[CH:12][C:13]([CH2:16][NH:17][C:18]([C@H:20]2[N:24]3[C:25](=[O:37])[C:26]([N:29]([CH2:39][CH3:40])[CH2:30][CH3:31])=[CH:27][N:28]=[C:23]3[CH2:22][CH2:21]2)=[O:19])=[CH:14][CH:15]=1)=[NH:9])([CH3:4])([CH3:3])[CH3:2]

Participants

5

Reactant 4

HCID 177AcetaldehydeHCID 5049666Sodium triacetoxyborohydrideHCID 145857226tert-butyl N-[4-[[[(6S)-3-amino-4-oxo-7,8-dihydro-6H-pyrrolo[1,2-a]pyrimidine-6-carbonyl]amino]methyl]benzenecarboximidoyl]carbamateHCID 145857234tert-butyl N-[4-[[[(6S)-3-(benzylamino)-4-oxo-7,8-dihydro-6H-pyrrolo[1,2-a]pyrimidine-6-carbonyl]amino]methyl]benzenecarboximidoyl]carbamate

Product 1

HCID 145857233tert-butyl N-[4-[[[(6S)-3-(diethylamino)-4-oxo-7,8-dihydro-6H-pyrrolo[1,2-a]pyrimidine-6-carbonyl]amino]methyl]benzenecarboximidoyl]carbamateYield 100%

Procedure

Following a procedure similar to that for the preparation of 1k, intermediate 1j (48 mg, 0.113 mmol), acetaldehyde (39.6 mg, 0.90 mmol) and NaBH(OAc)3 (216.2 mg, 1.02 mmol) yielded 56 mg (100%) of intermediate 3a. MS (ESI) 483.1 (M+H+).

Sources & evidence

ORD record
ord-316141eaf6f54c0c9fa9c844294e9890
Source dataset
uspto-grants-2006_08
Patent number
US07094783B2

Reaction notes

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