Resolution and assignment of the absolute stereochemistry of a trans-2,3-diarylpyrrolidine LTB4 inhibitor intermediate
摘要:
1,3-Cycloaddition of an azaallyl anion with 4-methoxystyrene furnishes the corresponding racemic trans-pyrrolidine. Resolution of both enantiomers was accomplished by fractional crystallization with the inexpensive diacetone-2-keto-L-gulonic acid. The absolute stereochemistry was determined by single crystal X-ray analysis of the corresponding sulfonamide. (C) 1997 Elsevier Science Ltd.
Resolution and assignment of the absolute stereochemistry of a trans-2,3-diarylpyrrolidine LTB4 inhibitor intermediate
摘要:
1,3-Cycloaddition of an azaallyl anion with 4-methoxystyrene furnishes the corresponding racemic trans-pyrrolidine. Resolution of both enantiomers was accomplished by fractional crystallization with the inexpensive diacetone-2-keto-L-gulonic acid. The absolute stereochemistry was determined by single crystal X-ray analysis of the corresponding sulfonamide. (C) 1997 Elsevier Science Ltd.