Category: 1029413-53-3

Reference of 1029413-53-3, A common heterocyclic compound, 1029413-53-3, name is tert-Butyl 3-(4-amino-1H-pyrazol-1-yl)pyrrolidine-1-carboxylate, molecular formula is C12H20N4O2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.

Example 72C (1S,2S,3R,4R)-3-{[5-chloro-2-({1-[(3S)-pyrrolidin-3-yl]-1H-pyrazol-4-yl}amino)pyrimidin-4-yl]amino}bicyclo[2.2.1]hept-5-ene-2-carboxamide (+)-(1S,2S,3R,4R)-3-(2,5-Dichloropyrimidin-4-ylamino)bicyclo[2.2.1]hept-5-ene-2-carboxamide (75 mg, 0.25 mmol) and (S)-tert-butyl 3-(4-amino-1H-pyrazol-1-yl)pyrrolidine-1-carboxylate (63 mg, 0.25 mmol) were combined with 2-propanol (2.4 ml) in a sealed tube and the mixture was heated to 85 C. for 4 hours. The reaction mixture was concentrated to dryness, then treated with 5 mL TFA and stirred for 15 minutes. The mixture was again concentrated to dryness, the residue was dissolved in CH2Cl2, and the mixture was treated with aqueous saturated NaHCO3. The layers were separated and the aqueous layer was further extracted 3* with ethyl acetate. The extracts were dried (Na2SO4) and concentrated, then purified by flash chromatography yielding the desired product. 1H NMR (300 MHz, DMSO-D6) ppm 1.41 (d, J=7.8 Hz, 1H) 1.92-2.04 (m, 1H) 2.07-2.21 (m, 2H) 2.52-2.56 (m, 1H) 2.71-2.91 (m, 3H) 2.93 (d, J=5.4 Hz, 1H) 2.95-3.03 (m, 1H) 3.12 (dd, J=11.5, 7.12 Hz, 1H) 4.13 (t, J=7.5 Hz, 1H) 4.65-4.77 (m, 1H) 6.25-6.40 (m, 2H) 7.25 (s, 1H) 7.51 (s, 1H) 7.61-7.84 (m, 3H) 7.89 (s, 1H) 9.10 (s, 1H); MS (ESI(+)) m/e 415 (M+H)+.

The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.

Reference:
Patent; Abbott Laboratories; US2010/317680; (2010); A1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Reference of 1029413-53-3, Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 1029413-53-3, name is tert-Butyl 3-(4-amino-1H-pyrazol-1-yl)pyrrolidine-1-carboxylate, This compound has unique chemical properties. The synthetic route is as follows.

Exam pie 20: Synthesis of I -(2-(2-(5-chioro-2-( I -(pyrroi id i n-3-yi)-I H-pyrazoi-4-yiamino) pyrimidin-4-yi)ethyi)phenyi)cyciopropanecarboxamide (20)(a) tert-Butyl 3-(4-(4-(2-(1-carbamoylcyclopropyl)phenethyl) -5-chloropyrimidin-2- ylamino)- 1H-pyrazol- 1-yI)pyrrolidine- 1-carboxylate (A21)A stirred solution of 1-(2-(2-(2,5-dichloropyrimidin-4-yl)ethyl)phenyl)cyclopropanecarboxamide A 14 (0.150 g, 0.446 mmol), 4-amino-1-(1-Boc-pyrrolidin-3-yl)-1H-pyrazole (0.225 g, 0.892 mmol) in MeOH (10 mL) and water(1.0 mL) was heated at 70 C for 2 days. Additional 4-amino-1-(1-boc-pyrrolidin-3-yl)-1H-pyrazole (0.125 g, 0.446 mmol) was added and the mixture was heated for afurther 16 hours at reflux. After cooling the solvent was removed to afford a crude red oil which was purified by silica gel column chromatography (0-100% EtOAc in cyclohexane) to give the title compound A21 as a red oil (0.164 g, 67% yield). LCMSC: rt 5.51 mm; m/z 551.9 [M+H].

The chemical industry reduces the impact on the environment during synthesis tert-Butyl 3-(4-amino-1H-pyrazol-1-yl)pyrrolidine-1-carboxylate. I believe this compound will play a more active role in future production and life.

Reference:
Patent; CANCER THERAPEUTICS CRC PTY LIMITED; FOITZIK, Richard Charles; MORROW, Benjamin Joseph; HEMLEY, Catherine Fae; LUNNISS, Gillian Elizabeth; CAMERINO, Michelle Ang; GANAME, Danny; STUPPLE, Paul Anthony; LESSENE, Romina; KERSTEN, Wilhelmus Johannes Antonius; HARVEY, Andrew John; HOLMES, Ian Peter; WO2014/26243; (2014); A1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Electric Literature of 1029413-53-3,Some common heterocyclic compound, 1029413-53-3, name is tert-Butyl 3-(4-amino-1H-pyrazol-1-yl)pyrrolidine-1-carboxylate, molecular formula is C12H20N4O2, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.

Step 3: Preparation of 1-(1-methylpyrrolidin-3-yl)-1H-pyrazol-4-amine A reaction flask containing a suspension of LAH (499 mg, 13.2 mmol) in THF (22 mL) was evacuated and back-filled with nitrogen three times. A solution of tert-butyl 3-(4-amino-1H-pyrazol-1-yl)pyrrolidine-1-carboxylate (830 mg, 3.3 mmol) in THF (11 mL) was added dropwise, via an addition funnel and the reaction mixture was stirred at rt under nitrogen overnight. The reaction was quenched sequentially with water (1 mL), 1N NaOH (1 mL), and water (3 mL) to afford a suspension. The precipitate was filtered off and washed with ethyl acetate. The combined filtrates were diluted with a small amount of water and transferred to a separatory funnel. The layers were separated, and the aqueous layer was extracted with ethyl acetate. The organics were combined and concentrated to give crude material (137 mg). To recover product in the aqueous layer, the aqueous extraces were lyophilized to give a solid residue. This was suspended in EtOAc and filtered. The filtrate was evaporated to give additional crude material (287 mg). The combined crude was purified via Biotage flash chromatography (25S column, eluting with 7 N NH3/MeOH in DCM (1%-4%)) to give the title compound (279 mg, 51% yield). m/z (APCI+) for C8H14N4 167.2 (M+H)+. 1H NMR (400 MHz, DMSO-d6) delta ppm 1.89-2.00 (m, 1H) 2.20-2.31 (m, 1H) 2.26 (s, 3H) 2.42 (td, J=8.40, 6.19 Hz, 1H) 2.60 (dd, J=9.60, 4.80 Hz, 1H) 2.64-2.77 (m, 2H) 3.79 (br. s., 2H) 4.67 (m, J=9.44, 7.23, 4.67, 4.67 Hz, 1H) 6.87 (s, 1H) 7.07 (s, 1H).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route tert-Butyl 3-(4-amino-1H-pyrazol-1-yl)pyrrolidine-1-carboxylate, its application will become more common.