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Chemical Structure| 1313020-24-4 Chemical Structure| 1313020-24-4

Structure of 1313020-24-4

Chemical Structure| 1313020-24-4

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Product Details of [ 1313020-24-4 ]

CAS No. :1313020-24-4
Formula : C19H29N3O4
M.W : 363.45
SMILES Code : O=C(OC(C)C)CCCC1=NC2=CC(N(CCO)CCO)=CC=C2N1C

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Application In Synthesis of [ 1313020-24-4 ]

* 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.

  • Downstream synthetic route of [ 1313020-24-4 ]

[ 1313020-24-4 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 1313020-24-4 ]
  • [ 3543-75-7 ]
YieldReaction ConditionsOperation in experiment
Charge 600ml lot I dichloromethane in round bottom flask at 25- 30C and then charge stage E product. Slowly add 24ml Thionyl chloride drop wise below 30C (exothermic reaction). Raise the temperature to 55-60C and maintained for 2hrs. Cooled the reaction mass to 25-30C. Added 400ml of dichloromethane. Added 200ml lot I purified water and separated the layer. Combined the organic layer and wash it with 200ml saturated sodium bicarbonate solution. Combined the organic layer and wash it with 200ml saturated sodium chloride solution. Settle and separated the layer. Combined the organic layer and dry it over sodium sulphate. Distill out the reaction mass under vacuum at 40C upto one volume .Then added 370ml N-heptane into the reaction mass and stirred for 2hrs at room temperature. Filter the reaction rhass and washed it with 10ml N-heptane and suck dried for Ihr.Taken the insitu mass in round bottom flask and added 40ml dilute hydrochloric acid into the reaction mass. Slowly heat the reaction mass to 55-60 C.Maintained for 7- 8hrs (checking and confirming the impurity profile). Cool the reaction mass to room temperature and stir for 3-4hrs. Filter the reaction mass and wash it with 2ml chilled water.Again Charge crude Bendamustine Hydrochloride monohydrate isolated in the wet stage in round bottom flask containing 136 ml purified water and 40 ml hydrochloric acid (~30%) at ambient temperature. Stir the solution for about 30 minutes at 25- 30C. Raise the temperature at 55- 60C and maintained for about 6-8 hrs (This time may be more, however, depending upon achieving equilibration to impurity profile compliance). Cool the reaction mass upto 25C followed by stir for 2 hrs. Filter the reaction mass and wash it with 10 ml purified water (cold).Yield - 16.40 gm.XRPD as per Fig-1; DSC as per Fig. -2 and TGA as per Fig. -3
16.4 g Charge 600 ml lot I dichloromethane in round bottom flask at 25-30 C. and then charge stage E product. Slowly add 24 ml Thionyl chloride drop wise below 30 C. (exothermic reaction). Raise the temperature to 55-60 C. and maintained for 2 hrs. Cooled the reaction mass to 25-30 C. Added 400 ml of dichloromethane. Added 200 ml lot I purified water and separated the layer. Combined the organic layer and wash it with 200 ml saturated sodium bicarbonate solution. Combined the organic layer and wash it with 200 ml saturated sodium chloride solution. Settle and separated the layer. Combined the organic layer and dry it over sodium sulphate. Distill out the reaction mass under vacuum at 40 C. upto one volume. Then added 370 ml N-heptane into the reaction mass and stirred for 2 hrs at room temperature. Filter the reaction mass and washed it with 10 ml N-heptane and suck dried for 1 hr. Taken the insitu mass in round bottom flask and added 40 ml dilute hydrochloric acid into the reaction mass. Slowly heat the reaction mass to 55-60 C. Maintained for 7-8 hrs (checking and confirming the impurity profile). Cool the reaction mass to room temperature and stir for 3-4 hrs. Filter the reaction mass and wash it with 2 ml chilled water. [0174] Again Charge crude Bendamustine Hydrochloride monohydrate isolated in the wet stage in round bottom flask containing 136 ml purified water and 40 ml hydrochloric acid ( FontWeight="Bold" FontSize="10" 30%) at ambient temperature. Stir the solution for about 30 minutes at 25-30 C. Raise the temperature at 55-60 C. and maintained for about 6-8 hrs (This time may be more, however, depending upon achieving equilibration to impurity profile compliance). Cool the reaction mass upto 25 C. followed by stir for 2 hrs. Filter the reaction mass and wash it with 10 ml purified water (cold). [0175] Yield-16.40 gm. [0176] XRPD as per FIG. 1; DSC as per FIG. 2 and TGA as per FIG. 3
 

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