| Patents for C07D 221 - Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups (10,931) |
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| 05/04/1976 | US3954774 N-substituted-7,8-dihydroxycyclopentano[f]-1,2,3,4-tetrahydroisoquinolines and ethers and esters thereof |
| 04/27/1976 | US3953458 Hypotensive agents |
| 04/27/1976 | US3953455 Viral infections |
| 04/27/1976 | US3953451 Compounds of the naphthalimide series |
| 04/27/1976 | US3953441 Grignard reagents, reduction, cyclization |
| 04/20/1976 | US3951950 4-Azatricyclo[4.3.1.13,8 ]undecane and related compounds |
| 04/13/1976 | US3950393 Aminobenzyl-amides and salts thereof |
| 04/13/1976 | US3950346 Analgesics, pain relief |
| 04/13/1976 | US3950344 Of laudanosine and formylnorlaudanosine using a metal compound oxidizer |
| 04/13/1976 | US3950338 Bactericides |
| 04/06/1976 | US3948903 Substituted N-(1,2-dihydro-2-oxonicotinyl)-cephalexins and -cephaloglycins |
| 03/30/1976 | US3947454 Lowering blood pressure |
| 03/30/1976 | US3947452 2-[(Dihydroisoquinolinyl or dihydroisoindol-2-yl)alkyl]-1H-benz[de]isoquinoline-1,3(2H)-diones |
| 03/30/1976 | US3947451 Derivatives of substituted isoquinoline 1,3-diones |
| 03/09/1976 | US3943136 Process for preparing 3,3-thiobis (2-methoxy-1-azabenzanthrone |
| 03/02/1976 | US3941791 Optical brightener |
| 02/24/1976 | US3940400 3-Methyl-4-phenyl-1,2,3,4-tetrahydrobenz[g]isoquinoline hydrobromide |
| 02/24/1976 | US3940398 2-[[4-(Azine or diazine or triazine)-1-piperazinyl]alkyl]-1H-benz[de]isoquinoline-1,3(2H)-diones |
| 02/24/1976 | US3940397 2-[(Substituted-piperazinyl)alkyl]-1H-benz[de]isoquinoline-1,3(2H)-diones |
| 02/17/1976 | US3939165 5,6,6A,6B,7,8-Hexahydrobenz[a]phenanthridine hydrochloride |
| 02/03/1976 | US3936463 Analgesic |
| 02/03/1976 | US3936462 1,2,3,4,5,6-Hexahydro-1-oxo or hydroxy-3-acyl-2,6-methano-3-benzazocines and corresponding 1-esters thereof |
| 01/27/1976 | US3935227 2-[(Substituted-piperidinyl or tetrahydropyridinyl)alkyl]-1H-benz[de]isoquinoline-1,3(2H)-diones |
| 01/20/1976 | US3933893 Viricides |
| 01/20/1976 | US3933736 Homo- and co-polymers of ethylene, propylene, butene-1, pentene-1, and 4-methylpentene-1 with ethyl acrylate or vinyl acetate |
| 01/13/1976 | US3932643 Interferon inducers |
| 01/13/1976 | US3932422 8-Methylene-3-azabicyclo[3.3.1]non-6-en-4-ones |
| 01/13/1976 | US3932420 Process for the preparation of glaziovine |
| 01/13/1976 | US3932413 Process for the preparation of 4'-alkoxy-4-naphthalimido-pyrazolium compounds and intermediates therefor |
| 01/06/1976 | US3931194 2-Heteroaryl-methyl)-5,9β-dialkyl-6,7-benzomorphans and salts thereof |
| 01/06/1976 | US3931188 3-Hydroxy-5,6-benzomorphinan derivatives |