Methyl chloroformate → (S)-methyl (4-(5-(3-cyano-4-isopropoxyphenyl)-1,3,4-thiadiazol-2-yl)-2,3-dihydro-1H-inden-1-yl)carbamate

HRID 1891467Notes

Reaction equation

HRID 1891467 reaction equation
Cl.[NH2:2][C@@H:3]1[C:11]2[C:6](=[C:7]([C:12]3[S:16][C:15]([C:17]4[CH:18]=[CH:19][C:20]([O:25][CH:26]([CH3:28])[CH3:27])=[C:21]([CH:24]=4)[C:22]#[N:23])=[N:14][N:13]=3)[CH:8]=[CH:9][CH:10]=2)[CH2:5][CH2:4]1.Cl[C:30]([O:32][CH3:33])=[O:31]>C(Cl)Cl>[CH3:33][O:32][C:30](=[O:31])[NH:2][C@@H:3]1[C:11]2[C:6](=[C:7]([C:12]3[S:16][C:15]([C:17]4[CH:18]=[CH:19][C:20]([O:25][CH:26]([CH3:28])[CH3:27])=[C:21]([C:22]#[N:23])[CH:24]=4)=[N:14][N:13]=3)[CH:8]=[CH:9][CH:10]=2)[CH2:5][CH2:4]1

Participants

4

Reactant 2

HCID 6586Methyl chloroformateHCID 67193845(S)-5-(5-(1-amino-2,3-dihydro-1H-inden-4-yl)-1,3,4-thiadiazol-2-yl)-2-isopropoxybenzonitrile hydrochloride

Product 1

HCID 53233873(S)-methyl (4-(5-(3-cyano-4-isopropoxyphenyl)-1,3,4-thiadiazol-2-yl)-2,3-dihydro-1H-inden-1-yl)carbamateYield 92.1%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Prepared using General Procedure 8. To a stirred solution of (S)-5-(5-(1-amino-2,3-dihydro-1H-inden-4-yl)-1,3,4-thiadiazol-2-yl)-2-isopropoxybenzonitrile hydrochloride 4 (15 mg, 0.03 mmol) and TEA (11 mg, 0.1 mmol) in DCM (1 mL) was added methyl chloroformate (10 mg, 0.1). The reaction mixture was stirred at room temperature for 16 h. The solvent was evaporated and water (2 mL) was added. The resulting solid was filtered, washed with water, and dried under high vacuum to afford 12 mg (92%) of (S)-methyl(4-(5-(3-cyano-4-isopropoxyphenyl)-1,3,4-thiadiazol-2-yl)-2,3-dihydro-1H-inden-1-yl)carbamate 16 as white solid. LCMS-ESI (m/z) calculated for C23H22N4O3S: 434.1; found 435.3 [M+H]+, tR=3.69 min.

Workup

  1. customPrepared
  2. customThe solvent was evaporated
  3. additionwater (2 mL) was added
  4. filtrationThe resulting solid was filtered
  5. washwashed with water
  6. customdried under high vacuum

Sources & evidence

ORD record
ord-32187bbbb9e94db7a7459ccd28078655
Source dataset
uspto-grants-2013_08
Patent number
US08507538B2

Reaction notes

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