Certain thiazole(3,2-a)benzimidazole compounds
Abstract
Abstract COMPOUNDS OF FORMULA I AND FORMULA II HAVE BEEN PREPARED WHICH HAVE CNS DEPRESSANT AND ANTITUBERCULAR ACTIVITY: 1-(R2-OOC-(CH2)N-CH2-),2-((R3-PHENYL)-O-),R1- 1,3-THIAZETIDINO(3,2-A)BENZIMIDAZOLE (I) 1-(R2-OOC-(CH2)N-),2-(HO-),3-(R3-PHENYL),R1-2,3-DIHYDRO THIAZOLO(3,2-A)BENZIMIDAZOLE WHEREIN R1 IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, HALOGEN, (LOWER) ALKYL, TRIFLUOROMETHYL, NITRO AND AMINO; R2 IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND (LOWER) ALKYL; R3 IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, HALOGEN, (LOWER)ALKYL, TRIFLUOROMETHYL, NITRO, AMINO, PHENYL, HALOPHENYL AND (LOWER)PHENYL; N IS AN INTEGER OF FROM 1 TO 3; AND THE PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALTS THEREOF.
Inventors
- 👤 Peter H L Wei
- 👤 Stanley C Bell
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-28 | 1976-05-29 | 1976-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-28 | 1980-05-29 | 1980-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-28 | 1984-05-29 | 1984-11-28 | $7700.00 | Window Closed / Lapsed |