HomeMCPWorkbenchSkills
HomeWorkbenchNotificationsMe
llms.txt · MCP GuidePrivacy Policy · Terms of Service · Supportv1.8.0
  1. Home
  2. /Reaction

Triethylamine → tert-Butyl 4-(benzo[d]thiazole-2-carbonyl)-1-oxa-4,9-diazaspiro[5.5]undecane-9-carboxylate

HRID 471249
Notes
Print preview

Reaction equation

HRID 471249 reaction equation
F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2N=CC=CC=2N=N1.Cl.[O:26]1[C:31]2([CH2:36][CH2:35][N:34]([C:37]([O:39][C:40]([CH3:43])([CH3:42])[CH3:41])=[O:38])[CH2:33][CH2:32]2)[CH2:30][NH:29][CH2:28][CH2:27]1.[S:44]1[C:48]2[CH:49]=[CH:50][CH:51]=[CH:52][C:47]=2[N:46]=[C:45]1[C:53](O)=[O:54].C(N(CC)CC)C>CN(C=O)C>[S:44]1[C:48]2[CH:49]=[CH:50][CH:51]=[CH:52][C:47]=2[N:46]=[C:45]1[C:53]([N:29]1[CH2:30][C:31]2([CH2:36][CH2:35][N:34]([C:37]([O:39][C:40]([CH3:43])([CH3:42])[CH3:41])=[O:38])[CH2:33][CH2:32]2)[O:26][CH2:27][CH2:28]1)=[O:54]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 5850531,3-Benzothiazole-2-carboxylic acidHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 66964240Tert-butyl 1-oxa-4,9-diazaspiro[5.5]undecane-9-carboxylate hydrochloride

Product 1

HCID 57989296
tert-Butyl 4-(benzo[d]thiazole-2-carbonyl)-1-oxa-4,9-diazaspiro[5.5]undecane-9-carboxylate

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent2×

Procedure

O-(7-Azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (1.45 g) was added to a solution of tert-butyl 1-oxa-4,9-diazaspiro[5.5]undecane-9-carboxylate hydrochloride (WuXi PharmaTech) (0.8 g), 1,3-benzothiazol-2-carboxylic acid (0.588 g) and triethylamine (1.51 mL) in DMF (15 mL) and the resulting mixture stirred for 16 h. The volume of DMF was reduced in vacuo and the reaction mixture was partitioned between water (30 mL) and ethyl acetate (30 mL). The organic layer was washed with water (30 mL) and brine (30 mL), dried over magnesium sulphate, filtered and evaporated in vacuo. Purification was by silica gel chromatography eluting with 0-10% methanol in dichloromethane to give the subtitled compound as a yellow oil. Yield 0.83 g.

Workup

  1. customthe reaction mixture was partitioned between water (30 mL) and ethyl acetate (30 mL)
  2. washThe organic layer was washed with water (30 mL) and brine (30 mL)
  3. dry with materialdried over magnesium sulphate
  4. filtrationfiltered
  5. customevaporated in vacuo
  6. customPurification
  7. washeluting with 0-10% methanol in dichloromethane

Sources & evidence

ORD record
ord-cd5d7de5f3da41ec86ce81e84189f4c2
Source dataset
uspto-grants-2014_01
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08629271B2

Reaction notes

Loading…

On this pageParticipantsProcedureWorkupSources & evidenceReaction notes