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CAS No. : | 201150-73-4 | MDL No. : | MFCD02179750 |
Formula : | C14H20N2O2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | SISNTWMRMJDEFB-UHFFFAOYSA-N |
M.W : | 248.32 | Pubchem ID : | 17750539 |
Synonyms : |
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Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
88% | With sodium hydroxide; In 1,4-dioxane; water; at 0 - 20℃; | To a solution of 5-aminotetrahydroisoquinoline (3.68 g, 24.8 mmol) in 1,4-dioxane (100 mL) was added 3 N NaOH (8. 27 mL, 24.8 mmol). After cooling to 0 C, (Boc) 20 (5.42 g, 24.8 mmol) in 1,4-dioxane (10 mL) was added drop-wise and stirred for overnight at room temperature. The reaction mixture was poured into water and extracted with EtOAc (2x). The combined organic layers was washed with sat. aq. NaHC03 solution, water, and brine, then dried and concentrated. The residue was purified by silica gel column chromatography to give 5.44 g (88%) of the desired Boc-protected product as a white solid |
2.4 g | With sodium hydroxide; In 1,4-dioxane; water; | 334B. tert-Butyl 5-amino-3,4-dihydroisoquinoline-2(lH)-carboxylate: 334A was dissolved in dioxane (20 mL) and 1M NaOH (12.62 mL, 12.62 mmol) and B0C2O was added (2.26 mL, 9.71 mmol). The organic solvent was evaporated and the remaining aqueous was diluted with water (20 mL) and ethyl acetate (50 mL). The aqueous layer was extracted with ethyl acetate (2 x 20mL) and the combined organic layers were washed with brine (15 mL) and dried (MgS04), and evaporated to give 334B (2.4 g) as a light pink solid. NMR (400MHz, chloroform-d) delta 7.04 (t, J = 7.7 Hz, 1H), 6.70 - 6.52 (m, 2H), 4.57 (s, 2H), 3.76 - 3.72 (m, 2H), 2.59 (t, J = 5.9 Hz, 2H), 1.54 - 1.45 (m, 9H) ppm. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
69% | With acetic acid; In 1-methyl-pyrrolidin-2-one; at 110℃; | Example 251; tert-butyl 5-[3-(aminocarbonyl)-6,7-diethoxyquinolin-4-yl]amino}-3, 4- dihydroisoquinoline-2 ( H)-carboxylate ; A mixture of 4-chloro-6, 7-diethoxyquinoline-3-carboxamide (178 mg, 0.61 mmole, prepared according to WO 02/092571), tert-butyl 5-amino-3,4-dihydroisoquinoline-2 (1H)- carboxylate (198 mg, 0.80 mmole), acetic acid (7 Ill) in NMP (3 ml) was heated over night at 110 C. The reaction mixture was cooled, partitioned between ethyl acetate and sodium hydrogen carbonate solution. The organic layer was washed with water, dried over sodium sulfate and concentrated in vacuum. The residue was purified by flash chromatography eluting with dichloromethane/methanol (10: 0.5) to give the title compound as a light brown powder (214 mg, 69 %). 1H NMR (399.99 MHz, DMSO-d6) 8 10.63 (1H, s), 8.84 (1H, s), 8.24 (1H, br s), 7.58 (1H, br s), 7.22 (1H, s), 7.06 (1H, t), 6.95 (1H, d), 6.65 (2H, s), 6.61 (2H, d), 4.53 (2H, s), 4.15 (2H, q), 3.59 (2H, t), 3.49 (2H, d), 2.70 (2H, t), 1.39 (9H, s), 1.36 (3H, t), 1.06 (3H, t). APCI-LC/MS m/z: 507.2 [MH+] |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With sodium t-butanolate;tris-(dibenzylideneacetone)dipalladium(0); 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene; In 1,4-dioxane; at 80℃; for 3h; | Reference Example 31 5-(4-Chloro-6-morpholin-4-yl-pyrimidin-2-ylamino)-3,4- dihydro-lH-isoquinoline-2-carboxylic acid tert-butyl ester; <n="45"/>A mixture of 4-(6-chloro-2-iodo-pyrimidin-4-yl)-morpholine (326 mg; 1.0 mmol), 5- amino-3,4-dihydro-lH-isoquinoline-2-carboxylic acid tert-buty ester (323 mg; 1.3 mmol), NaOBu' (135 mg; 1.4 mmol), Pd2dba3 (13.7 mg; 0.015 mmol) and Xantphos (28.9 mg; 0.05 mmol) in dioxane (2.5 ml) was stirred under argon at 80 0C for 3 h. The reaction mixture was diluted with water (10 ml) and brine (20 ml) then extracted into CH2Cl2 (2 x 35 ml). The combined organic layers were dried (Na2SO4), concentrated and purified by flash chromatography (60:40 to 70:30 EtO Ac/Petrol) to obtain the title compound as a white solid (114 mg). deltaH (400 MHz, CDCl3) 1.51 (s, 9H), 2.75 (t, J = 6.0, 2H), 3.55-3.58 (m, 4H), 3.69 (t, J = 6.0, 2H), 3.74-3.77 (m, 4H), 4.61 (s, 2H), 6.03 (s, IH), 6.59 (br s, IH), 6.92 (d, J = 8.0, IH), 7.22 (t, J = 8.0, IH), 7.75 (d, J = 8.0, IH). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
To <strong>[201150-73-4]tert-butyl 5-amino-3,4-dihydroisoquinoline-2(1H)-carboxylate</strong> (0.26 g, 1.047 mmol) in THF (5 mL), cooled to 0 C , was added NaH (0.105 g, 2.62 mmol). After 15 min, added iodomethane (0.196 mL, 3.14 mmol). After 24 h, additional NaH and iodomethane were added and the reaction was heated to reflux for 4 h. The reaction was quenched with H2O (15 mL) and extracted with EtOAc (3 x 30 mL). The combined organic layers were washed with brine (10 mL) and dried (MgS04). Purification by silica gel chromatography afforded 40A as 0.213 g of a yellow oil. MS (ESI) m/z: 277.1 (M+H)+. | ||
To a solution of the product from the previous step described above (0.2 g, 0.81 mmol) in THF (5 mL) was added NaH at 0 C. After 15 minutes, CH3I was added and the stirring continued for overnight at room temperature. After completion the reaction mixture was quenched with ice water, extracted with EtOAc (25 mL), dried (Na2S04) and concentrated. The Boc group was removed with 60% TFA-DCM (2 mL) at 0 C to give 110 mg (77.5%) of the final product as a light greenish solid. MS: 177.1 (MH+). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With sodium hydroxide; In dichloromethane; for 0.0833333h; | To a separatory funnel was added <strong>[201150-73-4]tert-butyl 5-amino-3,4-dihydroisoquinoline-2(1H)-carboxylate</strong> (0.2 g, 0.805 mmol) in DCM (15 mL) and 1N NaOH (5 mL) , then methyl chloroformate (0.062 mL, 0.805 mmol). The reaction was shaken 5 min and the layers were separated. The organic layer was washed with brine and dried (MgSO4). MS (ESI) m/z: 251 (M+H- tbutyl)+. The compound was heated in 10 mL H2O to 150 C in a microwave for 35 min. Removal of the H2O afforded 0.163 g of 35A as a yellow solid. MS (ESI) m/z: 207 (M+H)+ |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
48% | at 140℃; for 0.5h; | Example 34 Synthesis of 2-(5-(6-(2-chlorophenyl)-8-methyl-7-oxo-7,8-dihydropyrido[2,3-d]-pyrimidin-2-ylamino)-1,2,3,4-tetrahydroisoquinoline-2-carbonyl)-3-cyclopropylacrylonitrile Step 1. A solution of 6-(2-chlorophenyl)-8-methyl-2-(methylsulfinyl)pyrido[2,3-d]pyrimidin-7(8H)-one (0.2 g) and <strong>[201150-73-4]tert-butyl 5-amino-3,4-dihydroisoquinoline-2(1H)-carboxylate</strong> (0.2 g) in DCM (5 mL) was concentrated to remove DCM. The resulted mixture was then stirred at 140 C. for 0.5 h. LCMS showed completion of reaction and the mixture was purified by preparative TLC to afford tert-butyl 5-(6-(2-chlorophenyl)-8-methyl-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-2-ylamino)-3,4-dihydroisoquinoline-2(1H)-carboxylate (150 mg, 48% in yield). |
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