The present invention relates to a process for preparing a compound of formula (I): which includes cyclodehydrating a compound of formula (II): in the presence of an acid activated clay or acid activated zeolite catalyst and in the presence of a suitable solvent.
申请公布号
WO0242289(A3)
申请公布日期
2002.09.06
申请号
WO2001US42940
申请日期
2001.11.14
申请人
ELI LILLY AND COMPANY;LUKE, WAYNE, DOUGLAS;SANDERSON, HEIDI, ANN;ZHENG, HUA
