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Chemical Structure| 857402-27-8 Chemical Structure| 857402-27-8

Structure of 857402-27-8

Chemical Structure| 857402-27-8

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Product Details of [ 857402-27-8 ]

CAS No. :857402-27-8
Formula : C35H55ClN4O10
M.W : 727.29
SMILES Code : CC(C)(N)C(O)=O.NC(O[C@@H](/C(C)=C/[C@H](C)[C@@H](O)[C@@H](OC)C[C@H](C)C1)[C@@H](OC)/C=C\C=C(C)\C(NC2=CC(O)=C(NCC=C)C1=C2O)=O)=O.[H]Cl

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Application In Synthesis of [ 857402-27-8 ]

* 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 [ 857402-27-8 ]

[ 857402-27-8 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 59660-95-6 ]
  • [ 75747-14-7 ]
  • [ 857402-27-8 ]
YieldReaction ConditionsOperation in experiment
79% 17-Allylaminogeldanamycin (1) (16.7 mg, 0.0285 mmol, 1.0 equiv) was dissolved in 1.5 mL dichloromethane and stirred with a 10% aqueous solution of sodium hydrosulfite (1.5 mL). The deep purple solution turned yellow after 5 min and the mixture was stirred for an additional 25 min. The organic layer was removed via syringe and the aqueous solution was extracted with an additional 0.30 mL dichloromethane. The combined organic solutions were washed with brine (1.0 mL) and then added directly to a solution of acid chloride hydrochloride (4.4 mg, 0.0314 mmol, 1.1 equiv) in 0.20 mL dichloromethane. The reaction mixture was stirred for 2 h and poured into a separatory funnel with 3.0 mL water. The organic layer was extracted and then washed with additional 2.0 mL water. The combined aqueous layers were lyophilized to yield 3 as a white fluffy powder (15.1 mg, 0.0224 mmol, 79% yield). The material was analyzed by 1H NMR in D20 and LC-MS.
79% Example 10: Preparation of alpha-Aminoisobutyrate Co-Salt of the Hydroquinone of 17- AAG[0082] <strong>[75747-14-7]17-AAG</strong> (16.7 mg, 0.0285 mmol, 1.0 equiv) was dissolved in 1.5 mL dichloromethane and stirred with a 10% aqueous solution of sodium hydrosulfite (1.5 mL). The deep purple solution turned yellow after 5 min and the mixture was stirred for an additional 25 min. The organic layer was removed via syringe and the aqueous solution was extracted with an additional 0.30 mL dichloromethane. The combined organic solutions were washed with brine (1.0 mL) and then added directly to a solution of acid chloride hydrochloride (4.4 mg, 0.0314 mmol, 1.1 equiv) in 0.20 mL dichloromethane. The reaction mixture was stirred for 2 h and poured into a separatory funnel with 3.0 mL water. The organic layer was extracted and then washed with additional 2.0 mL water. The combined aqueous layers were lyophilized to yield 11 as a white fluffy powder (15.1 mg, 0.0224 mmol, 79% yield). The material was analyzed by 1H NMR in D2O and LC-MS.
Geldanamycin (28) (0.14 g, 0.25 mmol, 1.0 equiv) add to a 10 mL vial followed by a solution of allyl amine (0.075 mL, 1.0 mmol, 4 equiv. ) in MeTHF (0.625 mL). The resulting slurry is heated to 40 C under nitrogen for 10 hours. The reaction mixture was then cooled to room temperature, diluted with 1.0 mL of MeTHF, washed with a saturated NH4C1 solution (1.5 mL) and saturated NaCl (1.5 mL). The organic layer was then collected and treated with a freshly prepared aqueous solution of sodium hydrosulfite (1 mL, 20% (m/m) ) with vigorous stirring under nitrogen for 45 minutes. The aqueous layer was then removed and the organic layer was then washed with 1.5 mL of degassed water. The organic solution was then dried by azetropic removal of water using MeTHF. This was accomplished by the addition of 2 mL of MeTHF and then concentration (about 2 mL) of the resulting solution under reduced, pressure at 70 C. The resulting solution is then cooled to 0 C in an ice bath and then a-aminoisobutyric acid chloride hydrochloride (0.04 g, 0.25mmol, 1.0 equiv. ) is added under nitrogen. The reaction mixture is stirred for 3 hours at which point the solid is collected by filtration and washed with MeTHF (2 X 2 mL). The solid is then dried under reduced pressure to yield the product as a yellow powder (171 mg, 0.2425 mmol, 97% overall yield).
 

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