Dibenzothiazepinone → N-[4-(11H-Dibenzo[b,f][1,4]thiazepine-10-carbonyl)-phenyl]-2-methyl-benzamide

HRID 962561Notes

Reaction equation

HRID 962561 reaction equation
O=[C:2]1[C:8]2[CH:9]=[CH:10][CH:11]=[CH:12][C:7]=2[S:6][C:5]2[CH:13]=[CH:14][CH:15]=[CH:16][C:4]=2[NH:3]1.B.CSC.C1C2CNC3C=CC=CC=3SC=2C=CC=1.[CH3:36][C:37]1[CH:54]=[CH:53][CH:52]=[CH:51][C:38]=1[C:39]([NH:41][C:42]1[CH:50]=[CH:49][C:45]([C:46](Cl)=[O:47])=[CH:44][CH:43]=1)=[O:40]>O1CCCC1.ClCCl.CN(C)C1C=CN=CC=1.C(N(CC)CC)C>[CH:9]1[C:8]2[CH2:2][N:3]([C:46]([C:45]3[CH:44]=[CH:43][C:42]([NH:41][C:39](=[O:40])[C:38]4[CH:51]=[CH:52][CH:53]=[CH:54][C:37]=4[CH3:36])=[CH:50][CH:49]=3)=[O:47])[C:4]3[CH:16]=[CH:15][CH:14]=[CH:13][C:5]=3[S:6][C:7]=2[CH:12]=[CH:11][CH:10]=1

Participants

9

Reactant 4

HCID 374829DibenzothiazepinoneHCID 107074414-[(2-methylbenzoyl)amino]benzoyl ChlorideHCID 1231048210,11-Dihydrodibenzo(b,f)(1,4)thiazepineHCID 12423031(Dimethyl sulfide)trihydroboron

Product 1

HCID 15307988N-[4-(11H-Dibenzo[b,f][1,4]thiazepine-10-carbonyl)-phenyl]-2-methyl-benzamideYield 74.3%

Reagents, catalysts & solvents 4

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent2×HCID 8028TetrahydrofuranSolvent2×HCID 8471TriethylamineSolvent

Procedure

As described for in Reference Example 12, a mixture of 3.3 g of 10,11-dihydro-11-oxodibenz[b,f] [1,4]thiazepine, 25 ml of tetrahydrofuran, 4.0 ml of 10 molar borane-dimethylsulfide (2.67 equivalents) in tetrahydrofuran is stirred at room temperature 18 hours to give, after work-up, 10,11-dihydrodibenz[b,f] [1,4] thiazepine as white crystals, m.p. 145°-148° C. The preceding compound (3.5 g) is suspended in 25 ml of dichloromethane and a solution of 1.8 g of 4-[(2-methylbenzoyl)amino]benzoyl chloride in 50 ml of dichloromethane added. To the stirred mixture is added 4 ml of triethylamine and 0.2 g of 4-(dimethylamino) pyridine. The mixture is stirred at room temperature for 20 hours. The mixture is filtered and the filtrate concentrated. The residue is purified by chromatography on silica gel with hexane-chloroform-ethyl acetate (2:1:1) as solvent to give 2.2 g of yellow crystals. A sample (0.80 g) is further purified by thick layer chromatography on silica gel with hexane-chloroform-ethyl acetate (2:1:1) as solvent to give 0.50 g of crystals, 76°-78° C.

Workup

  1. customto give
  2. stirringThe mixture is stirred at room temperature for 20 hours
  3. filtrationThe mixture is filtered
  4. concentrationthe filtrate concentrated
  5. customThe residue is purified by chromatography on silica gel with hexane-chloroform-ethyl acetate (2:1:1) as solvent

Sources & evidence

ORD record
ord-59da4de80b1c417c9651a3f36d30b6a1
Source dataset
uspto-grants-1998_06
Patent number
US05760031

Reaction notes

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