Heteroaryl-substituted urea modulators of fatty acid amide hydrolase
An alkyl and phenyl technology, applied in the field of heteroaryl-substituted urea regulators of fatty acid amide hydrolase, can solve the unknown problems of human osteoporosis
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example 1
[0149] Example 1: 4-(2,2-Difluoro-benzo[1,3]dioxol-5-ylmethyl)-piperazine-1-carboxylic acid Benzo[d]iso evil Azol-3-ylamide trifluoroacetate
[0150]
[0151] Step A: Benzo[d]iso evil Azol-3-yl-phenylcarbamate Benzo[d]isoxazol-3-ylamide (3.0g) and ClCO 2 Ph (0.94mL) in dry CH 3 The mixture in CN (30 mL) was stirred at 70 °C for 23 hours. The reaction mixture was poured into deionized water, stirred for 30 minutes and filtered. The isolated solid was rinsed thoroughly with water and dried under high vacuum to afford 1.90 g (100%) of the title compound. MS: 255.1.
[0152] Step B: 1-(2,2-Difluoro-benzo[1,3]dioxol-5-ylmethyl)-piperazine Piperazine-1-carboxylate tert-butyl ester (20.0 g) and 2,2-difluoro-benzo[1,3]dioxole-5-carbaldehyde (14.8 mL) in DCE (208 mL) A 0°C solution of NaB(OAc) 3 H (31.8g) treatment. The mixture was allowed to warm to room temperature and stirred for 16 hours. The resulting mixture was cooled in an ice bath and treated with 10% aqu...
example 2
[0155] Example 2: 4-(2,2-Difluoro-benzo[1,3]dioxol-5-ylmethyl)-piperazine-1-carboxylic acid (3-Phenyl-[1,2,4]thiadiazol-5-yl)-amide trifluoroacetate
[0156]
[0157] MS: 460.5. 1 H NMR (CDCl 3 ): 10.66 (br s, 1H), 8.10-8.08 (m, 2H), 7.46-7.43 (m, 3H), 7.00 (s, 1H), 6.96 (d, J=8.4, 1H), 6.91-6.89 ( dd, J = 1.2, 7.8, 1H), 3.33 (br s, 6H), 2.15 (br s, 4H).
example 3
[0158] Example 3: 4-(2,2-Difluoro-benzo[1,3]dioxol-5-ylmethyl)-piperazine-1-carboxylic acid (1H-tetrazol-5-yl)-amide trifluoroacetate
[0159]
[0160] MS: 368.5. 1 H NMR (d 6 -DMSO): 15.51(s, 1H), 10.98(s, 1H), 7.54(s, 2H), 7.33-7.32(m, 1H), 4.29(br s, 4H), 3.58-2.86(m, 6H) .
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