| abstract |
PCT No. PCT/US95/01641 Sec. 371 Date Aug. 31, 1995 Sec. 102(e) Date Aug. 31, 1995 PCT Filed Feb. 7, 1995 PCT Pub. No. WO95/21818 PCT Pub. Date Aug. 17, 1995A novel process for preparing clonidine derivatives has been discovered which is shorter, less expensive and safer than previously known methods. A new thiourea complex has also been discovered which can be directly cyclized to produce the corresponding heterocyclic product. |