Patent US3215713A successfully refreshed from Google Patents.
US3215713A
Expired / Lapsed
US
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Steroid nitrite esters
Assignee: Merck Sharp & Dohme LLC
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Filing: 1961-03-14
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Granted: 1965-11-02
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Expires: 1981-03-14
Abstract
No abstract record available.
Inventors
- 👤 Derek H R Barton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:34
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/44; C07D213/53; C07C; C07C203/00; C07C323/00; C07D295/00; C07D295/04; C07D295/08; C07D295/084; C07D295/088; C07D295/12; C07D295/125; C07D295/13; C07D295/14; C07D295/145; C07D295/15; C07D459/00; C07J; C07J41/00; C07J41/0033; C07J41/0038; C07J41/005; C07J41/0055; C07J41/0072; C07J41/0094; C07J71/00; C07J71/0005; C07J71/001; C07J71/0036; C07J71/0042; C07J71/0052; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A STEROID NITRITE ESTER HAVING 18 TO 29 CARBON ATOMS IN THE STEROID MOIETY THEREOF, THE NITRITE RADICAL OF SAID NITRITE ESTER BEING CONFORMATIONALLY ADJACENT OT A HYDROGEN ATOM, THERE BEING A 2-CARBON BRIDGE BETWEEN THE RESPECTIVE CARBON ATOMS BEARING THE NITRITE ESTER AND THE CONFORMATIONALLY ADJACENT HYDROGEN ATOM, SAID NITRITE ESTER BEING IN A POSITION SELECTED FROM THE GROUP CONSISTING OF 1B,2B,4B,6B, 7B,11, 15A, 18,19, 20 AND 24; SAID STEROID NITRITE ESTER BEING FURTHER CHARACTERIZED IN THAT UPON IRRADIATION WITH ULTRAVIOLET LIGHT, THE NITRILE RADICAL UNDERGOES PHOTOLYTIC EXCHANGE OF POSITION WITH THE AFORESAID CONFORMATIONALLY ADJACENT HYDROGEN ATOM. 16. 4-PREGNENCE-20B-OL-3-ONE 20 NITRITE.
Claim 2
Dependent Claim
102 words
A STEROID NITRITE ESTER HAVING 18 TO 29 CARBON ATOMS IN THE STEROID MOIETY THEREOF, THE NITRITE RADICAL OF SAID NITRITE ESTER BEING CONFORMATIONALLY ADJACENT OT A HYDROGEN ATOM, THERE BEING A 2-CARBON BRIDGE BETWEEN THE RESPECTIVE CARBON ATOMS BEARING THE NITRITE ESTER AND THE CONFORMATIONALLY ADJACENT HYDROGEN ATOM, SAID NITRITE ESTER BEING IN A POSITION SELECTED FROM THE GROUP CONSISTING OF 1B,2B,4B,6B, 7B,11, 15A, 18,19, 20 AND 24; SAID STEROID NITRITE ESTER BEING FURTHER CHARACTERIZED IN THAT UPON IRRADIATION WITH ULTRAVIOLET LIGHT, THE NITRILE RADICAL UNDERGOES PHOTOLYTIC EXCHANGE OF POSITION WITH THE AFORESAID CONFORMATIONALLY ADJACENT HYDROGEN ATOM. 16. 4-PREGNENCE-20B-OL-3-ONE 20 NITRITE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |