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US3786059A Expired / Lapsed US ⏱️ 0.0 years remaining

1,2,3,6-tetrahydro-4-pyridylmethyl carboxylates

Assignee: C.H. Boehringer Sohn AG and Co KG
•
Filing: 1971-08-31
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Granted: 1974-01-15
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Expires: 1991-08-31
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Abstract

Abstract RACEMIC MIXTURES OF COMPOUNDS OF THE FORMULA 1-R1,4-(R2-COO-CH2-)-1,2,3,6-TETRAHYDROPYRIDINE WHEREIN R1 IS HYDROGEN, ALKYL OF 1 TO 8 CARBON ATOMS, CHLORO(ALKYL OF 1 TO 8 CARBON ATOMS), CYANO-(ALKYL OF 1 TO 8 CARBON ATOMS), HYDROXY-(ALKYL OF 1 TO 8 CARBON ATOMS), PHENYL-(ALKYL OF 1 TO 8 CARBON ATOMS), ALKENYL OF 3 TO 4 CARBON ATOMS OR ALKINYL OF 3 TO 4 CARBON ATOMS, AND R2 IS -C(-R3)(-R4)-C6H5, -CH(-R5)-R6, FLUOREN-9-YL OR XANTHEN-9-YL WHERE R3 IS HYDROXYL OR, TOGETHER WITH R4 AND THE CARBON ATOM TO WHICH THEY ARE ATTACHED, A 5- TO 6-MEMBERED SATURATED CARBOXYLIC RING, R4 AND R5 ARE EACH ALKYL OF 1 TO 4 CARBON ATOMS, CYCLOALKYL OF 5 TO 6 CARBON ATOMS OR PHENYL, AND R6 IS CYCLOALKYL OF 5 TO 6 CARBON ATOMS OR PHENYL, OPTICALLY ACTIVE ANTIPODES THEREOF, QUARTERNARY AMMONIUM SALTS THEROF, AND NON-TOXIC ACID ADDITION SALTS OF SAID RACEMATES AND OPTICALLY ACTIVE ANTIPODES; THE COMPOUNDS ARE USEFUL AS ANTICHOLINGERICS.

Inventors

  • 👤 G Walther
  • 👤 R Bauer
  • 👤 H Hubner
  • 👤 R Banholzer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 23:56
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/28; C07D213/30; A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/435; A61K31/44; C07D211/00; C07D211/04; C07D211/68; C07D211/70

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-01-14 1977-07-16 1978-01-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-01-14 1981-07-16 1982-01-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-01-14 1985-07-16 1986-01-15 $7700.00 Window Closed / Lapsed

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