(3aR,6aS)-2-methyl-octahydropyrrolo[3,4-c]pyrrole → 2-(2-Chloro-4-(1-methyl-1H-pyrazol-4-yl)phenyl)-5-((3aR,6aS)-5-methylhexahydropyrrolo[3,4-c]pyrrol-2(1H)-yl)-1,3,4-thiadiazole

HRID 579348Notes

Reaction equation

HRID 579348 reaction equation
Br[C:2]1[S:3][C:4]([C:7]2[CH:12]=[CH:11][C:10]([C:13]3[CH:14]=[N:15][N:16]([CH3:18])[CH:17]=3)=[CH:9][C:8]=2[Cl:19])=[N:5][N:6]=1.[CH3:20][N:21]1[CH2:28][C@@H:27]2[C@@H:23]([CH2:24][NH:25][CH2:26]2)[CH2:22]1>CN1C(=O)CCC1.C(Cl)Cl>[Cl:19][C:8]1[CH:9]=[C:10]([C:13]2[CH:14]=[N:15][N:16]([CH3:18])[CH:17]=2)[CH:11]=[CH:12][C:7]=1[C:4]1[S:3][C:2]([N:25]2[CH2:26][C@@H:27]3[C@@H:23]([CH2:22][N:21]([CH3:20])[CH2:28]3)[CH2:24]2)=[N:6][N:5]=1

Participants

5

Reactant 2

HCID 12958532(3aR,6aS)-2-methyl-octahydropyrrolo[3,4-c]pyrroleHCID 902824152-bromo-5-(2-chloro-4-(1-methyl-1H-pyrazol-4-yl)phenyl)-1,3,4-thiadiazole

Product 1

HCID 902823752-(2-Chloro-4-(1-methyl-1H-pyrazol-4-yl)phenyl)-5-((3aR,6aS)-5-methylhexahydropyrrolo[3,4-c]pyrrol-2(1H)-yl)-1,3,4-thiadiazoleYield 13%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 13387N-methyl-2-pyrrolidoneSolvent

Conditions

Temperature
120 °C

Procedure

A stirred suspension of 2-bromo-5-(2-chloro-4-(1-methyl-1H-pyrazol-4-yl)phenyl)-1,3,4-thiadiazole (70 mg, 0.197 mmol) and (3aR,6aS)-2-methyloctahydropyrrolo[3,4-c]pyrrole (75 mg, 0.590 mmol) in NMP (0.5 mL) was heated to 120° C. and the resulting solution was stirred for 16 hours. The reaction mixture was diluted with DCM (20 mL) and washed with saturated NaHCO3(aq) (20 mL). The organic phase was separated and the aqueous phase was re-extracted with DCM (20 mL). The combined organic phases were concentrated in vacuo to afford the crude product as a dark brown oily residue. The crude material was purified by mass directed preparative HPLC under acidic conditions (TFA modified) and the product containing fractions were loaded onto a 1 g SCX cartridge (pre-wet with MeOH). The cartridge was washed with MeOH (15 mL) then flushed with 7M NH3 in MeOH (10 mL). The MeOH/NH3 was removed in vacuo to afford the title compound as a light brown solid (10 mg, 13% yield). LC-MS: Rt 0.79 min; MS m/z 401.4 [M+H]+ [Method D]. 1H NMR (400 MHz, DMSO-d6) δ ppm 8.32 (s, 1H), 7.99-8.03 (m, 2H), 7.84 (d, J=2.02 Hz, 1H), 7.65-7.69 (m, 1H), 3.88 (s, 3H), 3.70 (dd, J=10.61, 8.08 Hz, 2H), 3.36 (dd, J=10.61, 3.03 Hz, 2H), 2.99 (br. s., 2H), 2.55 (br. s., 4H), 2.25 (s, 3H). 1H NMR (400 MHz, CHLOROFORM-d) δ ppm 8.21 (d, J=8.08 Hz, 1H), 7.81 (s, 1H), 7.69 (s, 1H), 7.57 (d, J=2.02 Hz, 1H), 7.46 (dd, J=8.34, 1.77 Hz, 1H), 3.99 (s, 3H), 3.79 (dd, J=9.85, 7.83 Hz, 2H), 3.53 (d, J=11.12 Hz, 2H), 3.12 (br. s., 2H), 2.76 (br. s., 2H), 2.58 (d, J=8.08 Hz, 2H), 2.41 (br. s., 3H).

Workup

  1. washwashed with saturated NaHCO3(aq) (20 mL)
  2. customThe organic phase was separated
  3. extractionthe aqueous phase was re-extracted with DCM (20 mL)
  4. concentrationThe combined organic phases were concentrated in vacuo
  5. customto afford the crude product as a dark brown oily residue
  6. customThe crude material was purified by mass
  7. additionthe product containing fractions
  8. washThe cartridge was washed with MeOH (15 mL)
  9. customthen flushed with 7M NH3 in MeOH (10 mL)
  10. customThe MeOH/NH3 was removed in vacuo

Sources & evidence

ORD record
ord-5b0ec25004bd4a10849b70d8dd2a757b
Source dataset
uspto-grants-2015_05
Patent number
US09040712B2

Reaction notes

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