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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1486098Generated: October 31, 2026

Diisopropylethylamine → HCID 131736781, compound

https://huagongshe.com/reaction/1486098

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantMethanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 2733084—
ReactantN-[(1,1-Dimethylethoxy)carbonyl]-N-ethyl-L-alanineHCID 71423142—
ReactantHCID 90082408HCID 90082408—
SolventDimethylformamideHCID 6228—
ProductHCID 131736781HCID 13173678180.1%

Reaction Steps

To a rt solution of (3S,4S)-3-amino-4-methyl-1-((2-methylnaphthalen-1-yl)methyl)-5-(2-(methylsulfonyl)acetyl)-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepine-7-carbonitrile hydrochloride (100 mg, 190 μmol) in DMF (632 μl) was added (S)-2-(tert-butoxycarbonyl(ethyl)amino)propanoic acid (45.3 mg, 209 μmol), N,N-diisopropylethylamine (131 μl, 759 μmol), and HBTU (79.2 mg, 209 μmol). The reaction was stirred at rt for 30 min, then purified by reverse phase preparative HPLC to provide tert-butyl(S)-1-((3S,4S)-7-cyano-4-methyl-1-((2-methylnaphthalen-1-yl)methyl)-5-(2-(methylsulfonyl)acetyl)-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-3-ylamino)-1-oxopropan-2-yl(ethyl)carbamate (105 mg, 80%) as a white solid. MS m/z 712 (MNa)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09422331B2
Source datasetuspto-grants-2016_08
ORD IDord-5ed6c04f1a4d48b6be22815de7a21162
Source noteuspto-grants-2016_08